diff --git a/OldDotNet.cs b/OldDotNet.cs
new file mode 100644
index 0000000..d6daad3
--- /dev/null
+++ b/OldDotNet.cs
@@ -0,0 +1,461 @@
+#if NET20 || NET35
+
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+
+namespace SabreTools.RedumpLib
+{
+    /// <see href="https://github.com/dotnet/runtime/blob/main/src/libraries/System.Private.CoreLib/src/System/Net/WebUtility.cs"/>
+    internal static class WebUtility
+    {
+        // some consts copied from Char / CharUnicodeInfo since we don't have friend access to those types
+        private const char HIGH_SURROGATE_START = '\uD800';
+        private const char LOW_SURROGATE_START = '\uDC00';
+        private const char LOW_SURROGATE_END = '\uDFFF';
+        private const int UNICODE_PLANE00_END = 0x00FFFF;
+        private const int UNICODE_PLANE01_START = 0x10000;
+        private const int UNICODE_PLANE16_END = 0x10FFFF;
+
+        public static string? HtmlDecode(string? value)
+        {
+            if (string.IsNullOrEmpty(value))
+            {
+                return value;
+            }
+
+            char[] valueSpan = value!.ToCharArray();
+
+            int index = Array.IndexOf(valueSpan, '&');
+            if (index < 0)
+            {
+                return value;
+            }
+
+            // In the worst case the decoded string has the same length.
+            // For small inputs we use stack allocation.
+            StringBuilder sb = value.Length <= 256 ?
+                new StringBuilder(256) :
+                new StringBuilder(value.Length);
+
+            sb.Append(valueSpan.Take(index).ToArray());
+            HtmlDecode(valueSpan.Skip(index).ToArray(), ref sb);
+
+            return sb.ToString();
+        }
+
+        private static void HtmlDecode(char[] input, ref StringBuilder output)
+        {
+            for (int i = 0; i < input.Length; i++)
+            {
+                char ch = input[i];
+
+                if (ch == '&')
+                {
+                    // We found a '&'. Now look for the next ';' or '&'. The idea is that
+                    // if we find another '&' before finding a ';', then this is not an entity,
+                    // and the next '&' might start a real entity (VSWhidbey 275184)
+                    char[] inputSlice = input.Skip(i + 1).ToArray();
+
+                    int semicolonPos = Array.IndexOf(inputSlice, ';');
+                    int ampersandPos = Array.IndexOf(inputSlice, '&');
+                    int entityLength;
+                    if (semicolonPos > -1 && ampersandPos > -1)
+                        entityLength = Math.Min(semicolonPos, ampersandPos);
+                    else if (semicolonPos <= -1 && ampersandPos > -1)
+                        entityLength = ampersandPos;
+                    else if (semicolonPos > -1 && ampersandPos <= -1)
+                        entityLength = semicolonPos;
+                    else
+                        entityLength = -1;
+
+                    if (entityLength >= 0 && inputSlice[entityLength] == ';')
+                    {
+                        int entityEndPosition = (i + 1) + entityLength;
+                        if (entityLength > 1 && inputSlice[0] == '#')
+                        {
+                            // The # syntax can be in decimal or hex, e.g.
+                            //      &#229;  --> decimal
+                            //      &#xE5;  --> same char in hex
+                            // See http://www.w3.org/TR/REC-html40/charset.html#entities
+
+                            bool parsedSuccessfully = inputSlice[1] == 'x' || inputSlice[1] == 'X'
+                                ? uint.TryParse(new string(inputSlice.Skip(2).Take(entityLength - 2).ToArray()), NumberStyles.AllowHexSpecifier, CultureInfo.InvariantCulture, out uint parsedValue)
+                                : uint.TryParse(new string(inputSlice.Skip(1).Take(entityLength - 1).ToArray()), NumberStyles.Integer, CultureInfo.InvariantCulture, out parsedValue);
+
+                            if (parsedSuccessfully)
+                            {
+                                // decoded character must be U+0000 .. U+10FFFF, excluding surrogates
+                                parsedSuccessfully = ((parsedValue < HIGH_SURROGATE_START) || (LOW_SURROGATE_END < parsedValue && parsedValue <= UNICODE_PLANE16_END));
+                            }
+
+                            if (parsedSuccessfully)
+                            {
+                                if (parsedValue <= UNICODE_PLANE00_END)
+                                {
+                                    // single character
+                                    output.Append((char)parsedValue);
+                                }
+                                else
+                                {
+                                    // multi-character
+                                    ConvertSmpToUtf16(parsedValue, out char leadingSurrogate, out char trailingSurrogate);
+                                    output.Append(leadingSurrogate);
+                                    output.Append(trailingSurrogate);
+                                }
+
+                                i = entityEndPosition; // already looked at everything until semicolon
+                                continue;
+                            }
+                        }
+                        else
+                        {
+                            char[] entity = inputSlice.Take(entityLength).ToArray();
+                            i = entityEndPosition; // already looked at everything until semicolon
+                            char entityChar = HtmlEntities.Lookup(entity);
+
+                            if (entityChar != (char)0)
+                            {
+                                ch = entityChar;
+                            }
+                            else
+                            {
+                                output.Append('&');
+                                output.Append(entity);
+                                output.Append(';');
+                                continue;
+                            }
+                        }
+                    }
+                }
+
+                output.Append(ch);
+            }
+        }
+
+        // similar to Char.ConvertFromUtf32, but doesn't check arguments or generate strings
+        // input is assumed to be an SMP character
+        private static void ConvertSmpToUtf16(uint smpChar, out char leadingSurrogate, out char trailingSurrogate)
+        {
+            int utf32 = (int)(smpChar - UNICODE_PLANE01_START);
+            leadingSurrogate = (char)((utf32 / 0x400) + HIGH_SURROGATE_START);
+            trailingSurrogate = (char)((utf32 % 0x400) + LOW_SURROGATE_START);
+        }
+
+        // helper class for lookup of HTML encoding entities
+        private static class HtmlEntities
+        {
+            // The list is from http://www.w3.org/TR/REC-html40/sgml/entities.html, except for &apos;, which
+            // is defined in http://www.w3.org/TR/2008/REC-xml-20081126/#sec-predefined-ent.
+            private static Dictionary<ulong, char> InitializeLookupTable()
+            {
+                byte[] tableData =
+                    [
+                        0x74, 0x6F, 0x75, 0x71, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("quot")*/    0x22, 0x00, /*'\x0022'*/
+                        0x70, 0x6D, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("amp")*/     0x26, 0x00, /*'\x0026'*/
+                        0x73, 0x6F, 0x70, 0x61, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("apos")*/    0x27, 0x00, /*'\x0027'*/
+                        0x74, 0x6C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("lt")*/      0x3C, 0x00, /*'\x003c'*/
+                        0x74, 0x67, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("gt")*/      0x3E, 0x00, /*'\x003e'*/
+                        0x70, 0x73, 0x62, 0x6E, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("nbsp")*/    0xA0, 0x00, /*'\x00a0'*/
+                        0x6C, 0x63, 0x78, 0x65, 0x69, 0x00, 0x00, 0x00, /*ToUInt64Key("iexcl")*/   0xA1, 0x00, /*'\x00a1'*/
+                        0x74, 0x6E, 0x65, 0x63, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("cent")*/    0xA2, 0x00, /*'\x00a2'*/
+                        0x64, 0x6E, 0x75, 0x6F, 0x70, 0x00, 0x00, 0x00, /*ToUInt64Key("pound")*/   0xA3, 0x00, /*'\x00a3'*/
+                        0x6E, 0x65, 0x72, 0x72, 0x75, 0x63, 0x00, 0x00, /*ToUInt64Key("curren")*/  0xA4, 0x00, /*'\x00a4'*/
+                        0x6E, 0x65, 0x79, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("yen")*/     0xA5, 0x00, /*'\x00a5'*/
+                        0x72, 0x61, 0x62, 0x76, 0x72, 0x62, 0x00, 0x00, /*ToUInt64Key("brvbar")*/  0xA6, 0x00, /*'\x00a6'*/
+                        0x74, 0x63, 0x65, 0x73, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("sect")*/    0xA7, 0x00, /*'\x00a7'*/
+                        0x6C, 0x6D, 0x75, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("uml")*/     0xA8, 0x00, /*'\x00a8'*/
+                        0x79, 0x70, 0x6F, 0x63, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("copy")*/    0xA9, 0x00, /*'\x00a9'*/
+                        0x66, 0x64, 0x72, 0x6F, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("ordf")*/    0xAA, 0x00, /*'\x00aa'*/
+                        0x6F, 0x75, 0x71, 0x61, 0x6C, 0x00, 0x00, 0x00, /*ToUInt64Key("laquo")*/   0xAB, 0x00, /*'\x00ab'*/
+                        0x74, 0x6F, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("not")*/     0xAC, 0x00, /*'\x00ac'*/
+                        0x79, 0x68, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("shy")*/     0xAD, 0x00, /*'\x00ad'*/
+                        0x67, 0x65, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("reg")*/     0xAE, 0x00, /*'\x00ae'*/
+                        0x72, 0x63, 0x61, 0x6D, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("macr")*/    0xAF, 0x00, /*'\x00af'*/
+                        0x67, 0x65, 0x64, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("deg")*/     0xB0, 0x00, /*'\x00b0'*/
+                        0x6E, 0x6D, 0x73, 0x75, 0x6C, 0x70, 0x00, 0x00, /*ToUInt64Key("plusmn")*/  0xB1, 0x00, /*'\x00b1'*/
+                        0x32, 0x70, 0x75, 0x73, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("sup2")*/    0xB2, 0x00, /*'\x00b2'*/
+                        0x33, 0x70, 0x75, 0x73, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("sup3")*/    0xB3, 0x00, /*'\x00b3'*/
+                        0x65, 0x74, 0x75, 0x63, 0x61, 0x00, 0x00, 0x00, /*ToUInt64Key("acute")*/   0xB4, 0x00, /*'\x00b4'*/
+                        0x6F, 0x72, 0x63, 0x69, 0x6D, 0x00, 0x00, 0x00, /*ToUInt64Key("micro")*/   0xB5, 0x00, /*'\x00b5'*/
+                        0x61, 0x72, 0x61, 0x70, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("para")*/    0xB6, 0x00, /*'\x00b6'*/
+                        0x74, 0x6F, 0x64, 0x64, 0x69, 0x6D, 0x00, 0x00, /*ToUInt64Key("middot")*/  0xB7, 0x00, /*'\x00b7'*/
+                        0x6C, 0x69, 0x64, 0x65, 0x63, 0x00, 0x00, 0x00, /*ToUInt64Key("cedil")*/   0xB8, 0x00, /*'\x00b8'*/
+                        0x31, 0x70, 0x75, 0x73, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("sup1")*/    0xB9, 0x00, /*'\x00b9'*/
+                        0x6D, 0x64, 0x72, 0x6F, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("ordm")*/    0xBA, 0x00, /*'\x00ba'*/
+                        0x6F, 0x75, 0x71, 0x61, 0x72, 0x00, 0x00, 0x00, /*ToUInt64Key("raquo")*/   0xBB, 0x00, /*'\x00bb'*/
+                        0x34, 0x31, 0x63, 0x61, 0x72, 0x66, 0x00, 0x00, /*ToUInt64Key("frac14")*/  0xBC, 0x00, /*'\x00bc'*/
+                        0x32, 0x31, 0x63, 0x61, 0x72, 0x66, 0x00, 0x00, /*ToUInt64Key("frac12")*/  0xBD, 0x00, /*'\x00bd'*/
+                        0x34, 0x33, 0x63, 0x61, 0x72, 0x66, 0x00, 0x00, /*ToUInt64Key("frac34")*/  0xBE, 0x00, /*'\x00be'*/
+                        0x74, 0x73, 0x65, 0x75, 0x71, 0x69, 0x00, 0x00, /*ToUInt64Key("iquest")*/  0xBF, 0x00, /*'\x00bf'*/
+                        0x65, 0x76, 0x61, 0x72, 0x67, 0x41, 0x00, 0x00, /*ToUInt64Key("Agrave")*/  0xC0, 0x00, /*'\x00c0'*/
+                        0x65, 0x74, 0x75, 0x63, 0x61, 0x41, 0x00, 0x00, /*ToUInt64Key("Aacute")*/  0xC1, 0x00, /*'\x00c1'*/
+                        0x63, 0x72, 0x69, 0x63, 0x41, 0x00, 0x00, 0x00, /*ToUInt64Key("Acirc")*/   0xC2, 0x00, /*'\x00c2'*/
+                        0x65, 0x64, 0x6C, 0x69, 0x74, 0x41, 0x00, 0x00, /*ToUInt64Key("Atilde")*/  0xC3, 0x00, /*'\x00c3'*/
+                        0x6C, 0x6D, 0x75, 0x41, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Auml")*/    0xC4, 0x00, /*'\x00c4'*/
+                        0x67, 0x6E, 0x69, 0x72, 0x41, 0x00, 0x00, 0x00, /*ToUInt64Key("Aring")*/   0xC5, 0x00, /*'\x00c5'*/
+                        0x67, 0x69, 0x6C, 0x45, 0x41, 0x00, 0x00, 0x00, /*ToUInt64Key("AElig")*/   0xC6, 0x00, /*'\x00c6'*/
+                        0x6C, 0x69, 0x64, 0x65, 0x63, 0x43, 0x00, 0x00, /*ToUInt64Key("Ccedil")*/  0xC7, 0x00, /*'\x00c7'*/
+                        0x65, 0x76, 0x61, 0x72, 0x67, 0x45, 0x00, 0x00, /*ToUInt64Key("Egrave")*/  0xC8, 0x00, /*'\x00c8'*/
+                        0x65, 0x74, 0x75, 0x63, 0x61, 0x45, 0x00, 0x00, /*ToUInt64Key("Eacute")*/  0xC9, 0x00, /*'\x00c9'*/
+                        0x63, 0x72, 0x69, 0x63, 0x45, 0x00, 0x00, 0x00, /*ToUInt64Key("Ecirc")*/   0xCA, 0x00, /*'\x00ca'*/
+                        0x6C, 0x6D, 0x75, 0x45, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Euml")*/    0xCB, 0x00, /*'\x00cb'*/
+                        0x65, 0x76, 0x61, 0x72, 0x67, 0x49, 0x00, 0x00, /*ToUInt64Key("Igrave")*/  0xCC, 0x00, /*'\x00cc'*/
+                        0x65, 0x74, 0x75, 0x63, 0x61, 0x49, 0x00, 0x00, /*ToUInt64Key("Iacute")*/  0xCD, 0x00, /*'\x00cd'*/
+                        0x63, 0x72, 0x69, 0x63, 0x49, 0x00, 0x00, 0x00, /*ToUInt64Key("Icirc")*/   0xCE, 0x00, /*'\x00ce'*/
+                        0x6C, 0x6D, 0x75, 0x49, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Iuml")*/    0xCF, 0x00, /*'\x00cf'*/
+                        0x48, 0x54, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("ETH")*/     0xD0, 0x00, /*'\x00d0'*/
+                        0x65, 0x64, 0x6C, 0x69, 0x74, 0x4E, 0x00, 0x00, /*ToUInt64Key("Ntilde")*/  0xD1, 0x00, /*'\x00d1'*/
+                        0x65, 0x76, 0x61, 0x72, 0x67, 0x4F, 0x00, 0x00, /*ToUInt64Key("Ograve")*/  0xD2, 0x00, /*'\x00d2'*/
+                        0x65, 0x74, 0x75, 0x63, 0x61, 0x4F, 0x00, 0x00, /*ToUInt64Key("Oacute")*/  0xD3, 0x00, /*'\x00d3'*/
+                        0x63, 0x72, 0x69, 0x63, 0x4F, 0x00, 0x00, 0x00, /*ToUInt64Key("Ocirc")*/   0xD4, 0x00, /*'\x00d4'*/
+                        0x65, 0x64, 0x6C, 0x69, 0x74, 0x4F, 0x00, 0x00, /*ToUInt64Key("Otilde")*/  0xD5, 0x00, /*'\x00d5'*/
+                        0x6C, 0x6D, 0x75, 0x4F, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Ouml")*/    0xD6, 0x00, /*'\x00d6'*/
+                        0x73, 0x65, 0x6D, 0x69, 0x74, 0x00, 0x00, 0x00, /*ToUInt64Key("times")*/   0xD7, 0x00, /*'\x00d7'*/
+                        0x68, 0x73, 0x61, 0x6C, 0x73, 0x4F, 0x00, 0x00, /*ToUInt64Key("Oslash")*/  0xD8, 0x00, /*'\x00d8'*/
+                        0x65, 0x76, 0x61, 0x72, 0x67, 0x55, 0x00, 0x00, /*ToUInt64Key("Ugrave")*/  0xD9, 0x00, /*'\x00d9'*/
+                        0x65, 0x74, 0x75, 0x63, 0x61, 0x55, 0x00, 0x00, /*ToUInt64Key("Uacute")*/  0xDA, 0x00, /*'\x00da'*/
+                        0x63, 0x72, 0x69, 0x63, 0x55, 0x00, 0x00, 0x00, /*ToUInt64Key("Ucirc")*/   0xDB, 0x00, /*'\x00db'*/
+                        0x6C, 0x6D, 0x75, 0x55, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Uuml")*/    0xDC, 0x00, /*'\x00dc'*/
+                        0x65, 0x74, 0x75, 0x63, 0x61, 0x59, 0x00, 0x00, /*ToUInt64Key("Yacute")*/  0xDD, 0x00, /*'\x00dd'*/
+                        0x4E, 0x52, 0x4F, 0x48, 0x54, 0x00, 0x00, 0x00, /*ToUInt64Key("THORN")*/   0xDE, 0x00, /*'\x00de'*/
+                        0x67, 0x69, 0x6C, 0x7A, 0x73, 0x00, 0x00, 0x00, /*ToUInt64Key("szlig")*/   0xDF, 0x00, /*'\x00df'*/
+                        0x65, 0x76, 0x61, 0x72, 0x67, 0x61, 0x00, 0x00, /*ToUInt64Key("agrave")*/  0xE0, 0x00, /*'\x00e0'*/
+                        0x65, 0x74, 0x75, 0x63, 0x61, 0x61, 0x00, 0x00, /*ToUInt64Key("aacute")*/  0xE1, 0x00, /*'\x00e1'*/
+                        0x63, 0x72, 0x69, 0x63, 0x61, 0x00, 0x00, 0x00, /*ToUInt64Key("acirc")*/   0xE2, 0x00, /*'\x00e2'*/
+                        0x65, 0x64, 0x6C, 0x69, 0x74, 0x61, 0x00, 0x00, /*ToUInt64Key("atilde")*/  0xE3, 0x00, /*'\x00e3'*/
+                        0x6C, 0x6D, 0x75, 0x61, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("auml")*/    0xE4, 0x00, /*'\x00e4'*/
+                        0x67, 0x6E, 0x69, 0x72, 0x61, 0x00, 0x00, 0x00, /*ToUInt64Key("aring")*/   0xE5, 0x00, /*'\x00e5'*/
+                        0x67, 0x69, 0x6C, 0x65, 0x61, 0x00, 0x00, 0x00, /*ToUInt64Key("aelig")*/   0xE6, 0x00, /*'\x00e6'*/
+                        0x6C, 0x69, 0x64, 0x65, 0x63, 0x63, 0x00, 0x00, /*ToUInt64Key("ccedil")*/  0xE7, 0x00, /*'\x00e7'*/
+                        0x65, 0x76, 0x61, 0x72, 0x67, 0x65, 0x00, 0x00, /*ToUInt64Key("egrave")*/  0xE8, 0x00, /*'\x00e8'*/
+                        0x65, 0x74, 0x75, 0x63, 0x61, 0x65, 0x00, 0x00, /*ToUInt64Key("eacute")*/  0xE9, 0x00, /*'\x00e9'*/
+                        0x63, 0x72, 0x69, 0x63, 0x65, 0x00, 0x00, 0x00, /*ToUInt64Key("ecirc")*/   0xEA, 0x00, /*'\x00ea'*/
+                        0x6C, 0x6D, 0x75, 0x65, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("euml")*/    0xEB, 0x00, /*'\x00eb'*/
+                        0x65, 0x76, 0x61, 0x72, 0x67, 0x69, 0x00, 0x00, /*ToUInt64Key("igrave")*/  0xEC, 0x00, /*'\x00ec'*/
+                        0x65, 0x74, 0x75, 0x63, 0x61, 0x69, 0x00, 0x00, /*ToUInt64Key("iacute")*/  0xED, 0x00, /*'\x00ed'*/
+                        0x63, 0x72, 0x69, 0x63, 0x69, 0x00, 0x00, 0x00, /*ToUInt64Key("icirc")*/   0xEE, 0x00, /*'\x00ee'*/
+                        0x6C, 0x6D, 0x75, 0x69, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("iuml")*/    0xEF, 0x00, /*'\x00ef'*/
+                        0x68, 0x74, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("eth")*/     0xF0, 0x00, /*'\x00f0'*/
+                        0x65, 0x64, 0x6C, 0x69, 0x74, 0x6E, 0x00, 0x00, /*ToUInt64Key("ntilde")*/  0xF1, 0x00, /*'\x00f1'*/
+                        0x65, 0x76, 0x61, 0x72, 0x67, 0x6F, 0x00, 0x00, /*ToUInt64Key("ograve")*/  0xF2, 0x00, /*'\x00f2'*/
+                        0x65, 0x74, 0x75, 0x63, 0x61, 0x6F, 0x00, 0x00, /*ToUInt64Key("oacute")*/  0xF3, 0x00, /*'\x00f3'*/
+                        0x63, 0x72, 0x69, 0x63, 0x6F, 0x00, 0x00, 0x00, /*ToUInt64Key("ocirc")*/   0xF4, 0x00, /*'\x00f4'*/
+                        0x65, 0x64, 0x6C, 0x69, 0x74, 0x6F, 0x00, 0x00, /*ToUInt64Key("otilde")*/  0xF5, 0x00, /*'\x00f5'*/
+                        0x6C, 0x6D, 0x75, 0x6F, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("ouml")*/    0xF6, 0x00, /*'\x00f6'*/
+                        0x65, 0x64, 0x69, 0x76, 0x69, 0x64, 0x00, 0x00, /*ToUInt64Key("divide")*/  0xF7, 0x00, /*'\x00f7'*/
+                        0x68, 0x73, 0x61, 0x6C, 0x73, 0x6F, 0x00, 0x00, /*ToUInt64Key("oslash")*/  0xF8, 0x00, /*'\x00f8'*/
+                        0x65, 0x76, 0x61, 0x72, 0x67, 0x75, 0x00, 0x00, /*ToUInt64Key("ugrave")*/  0xF9, 0x00, /*'\x00f9'*/
+                        0x65, 0x74, 0x75, 0x63, 0x61, 0x75, 0x00, 0x00, /*ToUInt64Key("uacute")*/  0xFA, 0x00, /*'\x00fa'*/
+                        0x63, 0x72, 0x69, 0x63, 0x75, 0x00, 0x00, 0x00, /*ToUInt64Key("ucirc")*/   0xFB, 0x00, /*'\x00fb'*/
+                        0x6C, 0x6D, 0x75, 0x75, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("uuml")*/    0xFC, 0x00, /*'\x00fc'*/
+                        0x65, 0x74, 0x75, 0x63, 0x61, 0x79, 0x00, 0x00, /*ToUInt64Key("yacute")*/  0xFD, 0x00, /*'\x00fd'*/
+                        0x6E, 0x72, 0x6F, 0x68, 0x74, 0x00, 0x00, 0x00, /*ToUInt64Key("thorn")*/   0xFE, 0x00, /*'\x00fe'*/
+                        0x6C, 0x6D, 0x75, 0x79, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("yuml")*/    0xFF, 0x00, /*'\x00ff'*/
+                        0x67, 0x69, 0x6C, 0x45, 0x4F, 0x00, 0x00, 0x00, /*ToUInt64Key("OElig")*/   0x52, 0x01, /*'\x0152'*/
+                        0x67, 0x69, 0x6C, 0x65, 0x6F, 0x00, 0x00, 0x00, /*ToUInt64Key("oelig")*/   0x53, 0x01, /*'\x0153'*/
+                        0x6E, 0x6F, 0x72, 0x61, 0x63, 0x53, 0x00, 0x00, /*ToUInt64Key("Scaron")*/  0x60, 0x01, /*'\x0160'*/
+                        0x6E, 0x6F, 0x72, 0x61, 0x63, 0x73, 0x00, 0x00, /*ToUInt64Key("scaron")*/  0x61, 0x01, /*'\x0161'*/
+                        0x6C, 0x6D, 0x75, 0x59, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Yuml")*/    0x78, 0x01, /*'\x0178'*/
+                        0x66, 0x6F, 0x6E, 0x66, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("fnof")*/    0x92, 0x01, /*'\x0192'*/
+                        0x63, 0x72, 0x69, 0x63, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("circ")*/    0xC6, 0x02, /*'\x02c6'*/
+                        0x65, 0x64, 0x6C, 0x69, 0x74, 0x00, 0x00, 0x00, /*ToUInt64Key("tilde")*/   0xDC, 0x02, /*'\x02dc'*/
+                        0x61, 0x68, 0x70, 0x6C, 0x41, 0x00, 0x00, 0x00, /*ToUInt64Key("Alpha")*/   0x91, 0x03, /*'\x0391'*/
+                        0x61, 0x74, 0x65, 0x42, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Beta")*/    0x92, 0x03, /*'\x0392'*/
+                        0x61, 0x6D, 0x6D, 0x61, 0x47, 0x00, 0x00, 0x00, /*ToUInt64Key("Gamma")*/   0x93, 0x03, /*'\x0393'*/
+                        0x61, 0x74, 0x6C, 0x65, 0x44, 0x00, 0x00, 0x00, /*ToUInt64Key("Delta")*/   0x94, 0x03, /*'\x0394'*/
+                        0x6E, 0x6F, 0x6C, 0x69, 0x73, 0x70, 0x45, 0x00, /*ToUInt64Key("Epsilon")*/ 0x95, 0x03, /*'\x0395'*/
+                        0x61, 0x74, 0x65, 0x5A, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Zeta")*/    0x96, 0x03, /*'\x0396'*/
+                        0x61, 0x74, 0x45, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Eta")*/     0x97, 0x03, /*'\x0397'*/
+                        0x61, 0x74, 0x65, 0x68, 0x54, 0x00, 0x00, 0x00, /*ToUInt64Key("Theta")*/   0x98, 0x03, /*'\x0398'*/
+                        0x61, 0x74, 0x6F, 0x49, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Iota")*/    0x99, 0x03, /*'\x0399'*/
+                        0x61, 0x70, 0x70, 0x61, 0x4B, 0x00, 0x00, 0x00, /*ToUInt64Key("Kappa")*/   0x9A, 0x03, /*'\x039a'*/
+                        0x61, 0x64, 0x62, 0x6D, 0x61, 0x4C, 0x00, 0x00, /*ToUInt64Key("Lambda")*/  0x9B, 0x03, /*'\x039b'*/
+                        0x75, 0x4D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Mu")*/      0x9C, 0x03, /*'\x039c'*/
+                        0x75, 0x4E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Nu")*/      0x9D, 0x03, /*'\x039d'*/
+                        0x69, 0x58, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Xi")*/      0x9E, 0x03, /*'\x039e'*/
+                        0x6E, 0x6F, 0x72, 0x63, 0x69, 0x6D, 0x4F, 0x00, /*ToUInt64Key("Omicron")*/ 0x9F, 0x03, /*'\x039f'*/
+                        0x69, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Pi")*/      0xA0, 0x03, /*'\x03a0'*/
+                        0x6F, 0x68, 0x52, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Rho")*/     0xA1, 0x03, /*'\x03a1'*/
+                        0x61, 0x6D, 0x67, 0x69, 0x53, 0x00, 0x00, 0x00, /*ToUInt64Key("Sigma")*/   0xA3, 0x03, /*'\x03a3'*/
+                        0x75, 0x61, 0x54, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Tau")*/     0xA4, 0x03, /*'\x03a4'*/
+                        0x6E, 0x6F, 0x6C, 0x69, 0x73, 0x70, 0x55, 0x00, /*ToUInt64Key("Upsilon")*/ 0xA5, 0x03, /*'\x03a5'*/
+                        0x69, 0x68, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Phi")*/     0xA6, 0x03, /*'\x03a6'*/
+                        0x69, 0x68, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Chi")*/     0xA7, 0x03, /*'\x03a7'*/
+                        0x69, 0x73, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("Psi")*/     0xA8, 0x03, /*'\x03a8'*/
+                        0x61, 0x67, 0x65, 0x6D, 0x4F, 0x00, 0x00, 0x00, /*ToUInt64Key("Omega")*/   0xA9, 0x03, /*'\x03a9'*/
+                        0x61, 0x68, 0x70, 0x6C, 0x61, 0x00, 0x00, 0x00, /*ToUInt64Key("alpha")*/   0xB1, 0x03, /*'\x03b1'*/
+                        0x61, 0x74, 0x65, 0x62, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("beta")*/    0xB2, 0x03, /*'\x03b2'*/
+                        0x61, 0x6D, 0x6D, 0x61, 0x67, 0x00, 0x00, 0x00, /*ToUInt64Key("gamma")*/   0xB3, 0x03, /*'\x03b3'*/
+                        0x61, 0x74, 0x6C, 0x65, 0x64, 0x00, 0x00, 0x00, /*ToUInt64Key("delta")*/   0xB4, 0x03, /*'\x03b4'*/
+                        0x6E, 0x6F, 0x6C, 0x69, 0x73, 0x70, 0x65, 0x00, /*ToUInt64Key("epsilon")*/ 0xB5, 0x03, /*'\x03b5'*/
+                        0x61, 0x74, 0x65, 0x7A, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("zeta")*/    0xB6, 0x03, /*'\x03b6'*/
+                        0x61, 0x74, 0x65, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("eta")*/     0xB7, 0x03, /*'\x03b7'*/
+                        0x61, 0x74, 0x65, 0x68, 0x74, 0x00, 0x00, 0x00, /*ToUInt64Key("theta")*/   0xB8, 0x03, /*'\x03b8'*/
+                        0x61, 0x74, 0x6F, 0x69, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("iota")*/    0xB9, 0x03, /*'\x03b9'*/
+                        0x61, 0x70, 0x70, 0x61, 0x6B, 0x00, 0x00, 0x00, /*ToUInt64Key("kappa")*/   0xBA, 0x03, /*'\x03ba'*/
+                        0x61, 0x64, 0x62, 0x6D, 0x61, 0x6C, 0x00, 0x00, /*ToUInt64Key("lambda")*/  0xBB, 0x03, /*'\x03bb'*/
+                        0x75, 0x6D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("mu")*/      0xBC, 0x03, /*'\x03bc'*/
+                        0x75, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("nu")*/      0xBD, 0x03, /*'\x03bd'*/
+                        0x69, 0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("xi")*/      0xBE, 0x03, /*'\x03be'*/
+                        0x6E, 0x6F, 0x72, 0x63, 0x69, 0x6D, 0x6F, 0x00, /*ToUInt64Key("omicron")*/ 0xBF, 0x03, /*'\x03bf'*/
+                        0x69, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("pi")*/      0xC0, 0x03, /*'\x03c0'*/
+                        0x6F, 0x68, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("rho")*/     0xC1, 0x03, /*'\x03c1'*/
+                        0x66, 0x61, 0x6D, 0x67, 0x69, 0x73, 0x00, 0x00, /*ToUInt64Key("sigmaf")*/  0xC2, 0x03, /*'\x03c2'*/
+                        0x61, 0x6D, 0x67, 0x69, 0x73, 0x00, 0x00, 0x00, /*ToUInt64Key("sigma")*/   0xC3, 0x03, /*'\x03c3'*/
+                        0x75, 0x61, 0x74, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("tau")*/     0xC4, 0x03, /*'\x03c4'*/
+                        0x6E, 0x6F, 0x6C, 0x69, 0x73, 0x70, 0x75, 0x00, /*ToUInt64Key("upsilon")*/ 0xC5, 0x03, /*'\x03c5'*/
+                        0x69, 0x68, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("phi")*/     0xC6, 0x03, /*'\x03c6'*/
+                        0x69, 0x68, 0x63, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("chi")*/     0xC7, 0x03, /*'\x03c7'*/
+                        0x69, 0x73, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("psi")*/     0xC8, 0x03, /*'\x03c8'*/
+                        0x61, 0x67, 0x65, 0x6D, 0x6F, 0x00, 0x00, 0x00, /*ToUInt64Key("omega")*/   0xC9, 0x03, /*'\x03c9'*/
+                        0x6D, 0x79, 0x73, 0x61, 0x74, 0x65, 0x68, 0x74, /*ToUInt64Key("thetasym")*/0xD1, 0x03, /*'\x03d1'*/
+                        0x68, 0x69, 0x73, 0x70, 0x75, 0x00, 0x00, 0x00, /*ToUInt64Key("upsih")*/   0xD2, 0x03, /*'\x03d2'*/
+                        0x76, 0x69, 0x70, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("piv")*/     0xD6, 0x03, /*'\x03d6'*/
+                        0x70, 0x73, 0x6E, 0x65, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("ensp")*/    0x02, 0x20, /*'\x2002'*/
+                        0x70, 0x73, 0x6D, 0x65, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("emsp")*/    0x03, 0x20, /*'\x2003'*/
+                        0x70, 0x73, 0x6E, 0x69, 0x68, 0x74, 0x00, 0x00, /*ToUInt64Key("thinsp")*/  0x09, 0x20, /*'\x2009'*/
+                        0x6A, 0x6E, 0x77, 0x7A, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("zwnj")*/    0x0C, 0x20, /*'\x200c'*/
+                        0x6A, 0x77, 0x7A, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("zwj")*/     0x0D, 0x20, /*'\x200d'*/
+                        0x6D, 0x72, 0x6C, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("lrm")*/     0x0E, 0x20, /*'\x200e'*/
+                        0x6D, 0x6C, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("rlm")*/     0x0F, 0x20, /*'\x200f'*/
+                        0x68, 0x73, 0x61, 0x64, 0x6E, 0x00, 0x00, 0x00, /*ToUInt64Key("ndash")*/   0x13, 0x20, /*'\x2013'*/
+                        0x68, 0x73, 0x61, 0x64, 0x6D, 0x00, 0x00, 0x00, /*ToUInt64Key("mdash")*/   0x14, 0x20, /*'\x2014'*/
+                        0x6F, 0x75, 0x71, 0x73, 0x6C, 0x00, 0x00, 0x00, /*ToUInt64Key("lsquo")*/   0x18, 0x20, /*'\x2018'*/
+                        0x6F, 0x75, 0x71, 0x73, 0x72, 0x00, 0x00, 0x00, /*ToUInt64Key("rsquo")*/   0x19, 0x20, /*'\x2019'*/
+                        0x6F, 0x75, 0x71, 0x62, 0x73, 0x00, 0x00, 0x00, /*ToUInt64Key("sbquo")*/   0x1A, 0x20, /*'\x201a'*/
+                        0x6F, 0x75, 0x71, 0x64, 0x6C, 0x00, 0x00, 0x00, /*ToUInt64Key("ldquo")*/   0x1C, 0x20, /*'\x201c'*/
+                        0x6F, 0x75, 0x71, 0x64, 0x72, 0x00, 0x00, 0x00, /*ToUInt64Key("rdquo")*/   0x1D, 0x20, /*'\x201d'*/
+                        0x6F, 0x75, 0x71, 0x64, 0x62, 0x00, 0x00, 0x00, /*ToUInt64Key("bdquo")*/   0x1E, 0x20, /*'\x201e'*/
+                        0x72, 0x65, 0x67, 0x67, 0x61, 0x64, 0x00, 0x00, /*ToUInt64Key("dagger")*/  0x20, 0x20, /*'\x2020'*/
+                        0x72, 0x65, 0x67, 0x67, 0x61, 0x44, 0x00, 0x00, /*ToUInt64Key("Dagger")*/  0x21, 0x20, /*'\x2021'*/
+                        0x6C, 0x6C, 0x75, 0x62, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("bull")*/    0x22, 0x20, /*'\x2022'*/
+                        0x70, 0x69, 0x6C, 0x6C, 0x65, 0x68, 0x00, 0x00, /*ToUInt64Key("hellip")*/  0x26, 0x20, /*'\x2026'*/
+                        0x6C, 0x69, 0x6D, 0x72, 0x65, 0x70, 0x00, 0x00, /*ToUInt64Key("permil")*/  0x30, 0x20, /*'\x2030'*/
+                        0x65, 0x6D, 0x69, 0x72, 0x70, 0x00, 0x00, 0x00, /*ToUInt64Key("prime")*/   0x32, 0x20, /*'\x2032'*/
+                        0x65, 0x6D, 0x69, 0x72, 0x50, 0x00, 0x00, 0x00, /*ToUInt64Key("Prime")*/   0x33, 0x20, /*'\x2033'*/
+                        0x6F, 0x75, 0x71, 0x61, 0x73, 0x6C, 0x00, 0x00, /*ToUInt64Key("lsaquo")*/  0x39, 0x20, /*'\x2039'*/
+                        0x6F, 0x75, 0x71, 0x61, 0x73, 0x72, 0x00, 0x00, /*ToUInt64Key("rsaquo")*/  0x3A, 0x20, /*'\x203a'*/
+                        0x65, 0x6E, 0x69, 0x6C, 0x6F, 0x00, 0x00, 0x00, /*ToUInt64Key("oline")*/   0x3E, 0x20, /*'\x203e'*/
+                        0x6C, 0x73, 0x61, 0x72, 0x66, 0x00, 0x00, 0x00, /*ToUInt64Key("frasl")*/   0x44, 0x20, /*'\x2044'*/
+                        0x6F, 0x72, 0x75, 0x65, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("euro")*/    0xAC, 0x20, /*'\x20ac'*/
+                        0x65, 0x67, 0x61, 0x6D, 0x69, 0x00, 0x00, 0x00, /*ToUInt64Key("image")*/   0x11, 0x21, /*'\x2111'*/
+                        0x70, 0x72, 0x65, 0x69, 0x65, 0x77, 0x00, 0x00, /*ToUInt64Key("weierp")*/  0x18, 0x21, /*'\x2118'*/
+                        0x6C, 0x61, 0x65, 0x72, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("real")*/    0x1C, 0x21, /*'\x211c'*/
+                        0x65, 0x64, 0x61, 0x72, 0x74, 0x00, 0x00, 0x00, /*ToUInt64Key("trade")*/   0x22, 0x21, /*'\x2122'*/
+                        0x6D, 0x79, 0x73, 0x66, 0x65, 0x6C, 0x61, 0x00, /*ToUInt64Key("alefsym")*/ 0x35, 0x21, /*'\x2135'*/
+                        0x72, 0x72, 0x61, 0x6C, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("larr")*/    0x90, 0x21, /*'\x2190'*/
+                        0x72, 0x72, 0x61, 0x75, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("uarr")*/    0x91, 0x21, /*'\x2191'*/
+                        0x72, 0x72, 0x61, 0x72, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("rarr")*/    0x92, 0x21, /*'\x2192'*/
+                        0x72, 0x72, 0x61, 0x64, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("darr")*/    0x93, 0x21, /*'\x2193'*/
+                        0x72, 0x72, 0x61, 0x68, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("harr")*/    0x94, 0x21, /*'\x2194'*/
+                        0x72, 0x72, 0x61, 0x72, 0x63, 0x00, 0x00, 0x00, /*ToUInt64Key("crarr")*/   0xB5, 0x21, /*'\x21b5'*/
+                        0x72, 0x72, 0x41, 0x6C, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("lArr")*/    0xD0, 0x21, /*'\x21d0'*/
+                        0x72, 0x72, 0x41, 0x75, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("uArr")*/    0xD1, 0x21, /*'\x21d1'*/
+                        0x72, 0x72, 0x41, 0x72, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("rArr")*/    0xD2, 0x21, /*'\x21d2'*/
+                        0x72, 0x72, 0x41, 0x64, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("dArr")*/    0xD3, 0x21, /*'\x21d3'*/
+                        0x72, 0x72, 0x41, 0x68, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("hArr")*/    0xD4, 0x21, /*'\x21d4'*/
+                        0x6C, 0x6C, 0x61, 0x72, 0x6F, 0x66, 0x00, 0x00, /*ToUInt64Key("forall")*/  0x00, 0x22, /*'\x2200'*/
+                        0x74, 0x72, 0x61, 0x70, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("part")*/    0x02, 0x22, /*'\x2202'*/
+                        0x74, 0x73, 0x69, 0x78, 0x65, 0x00, 0x00, 0x00, /*ToUInt64Key("exist")*/   0x03, 0x22, /*'\x2203'*/
+                        0x79, 0x74, 0x70, 0x6D, 0x65, 0x00, 0x00, 0x00, /*ToUInt64Key("empty")*/   0x05, 0x22, /*'\x2205'*/
+                        0x61, 0x6C, 0x62, 0x61, 0x6E, 0x00, 0x00, 0x00, /*ToUInt64Key("nabla")*/   0x07, 0x22, /*'\x2207'*/
+                        0x6E, 0x69, 0x73, 0x69, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("isin")*/    0x08, 0x22, /*'\x2208'*/
+                        0x6E, 0x69, 0x74, 0x6F, 0x6E, 0x00, 0x00, 0x00, /*ToUInt64Key("notin")*/   0x09, 0x22, /*'\x2209'*/
+                        0x69, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("ni")*/      0x0B, 0x22, /*'\x220b'*/
+                        0x64, 0x6F, 0x72, 0x70, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("prod")*/    0x0F, 0x22, /*'\x220f'*/
+                        0x6D, 0x75, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("sum")*/     0x11, 0x22, /*'\x2211'*/
+                        0x73, 0x75, 0x6E, 0x69, 0x6D, 0x00, 0x00, 0x00, /*ToUInt64Key("minus")*/   0x12, 0x22, /*'\x2212'*/
+                        0x74, 0x73, 0x61, 0x77, 0x6F, 0x6C, 0x00, 0x00, /*ToUInt64Key("lowast")*/  0x17, 0x22, /*'\x2217'*/
+                        0x63, 0x69, 0x64, 0x61, 0x72, 0x00, 0x00, 0x00, /*ToUInt64Key("radic")*/   0x1A, 0x22, /*'\x221a'*/
+                        0x70, 0x6F, 0x72, 0x70, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("prop")*/    0x1D, 0x22, /*'\x221d'*/
+                        0x6E, 0x69, 0x66, 0x6E, 0x69, 0x00, 0x00, 0x00, /*ToUInt64Key("infin")*/   0x1E, 0x22, /*'\x221e'*/
+                        0x67, 0x6E, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("ang")*/     0x20, 0x22, /*'\x2220'*/
+                        0x64, 0x6E, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("and")*/     0x27, 0x22, /*'\x2227'*/
+                        0x72, 0x6F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("or")*/      0x28, 0x22, /*'\x2228'*/
+                        0x70, 0x61, 0x63, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("cap")*/     0x29, 0x22, /*'\x2229'*/
+                        0x70, 0x75, 0x63, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("cup")*/     0x2A, 0x22, /*'\x222a'*/
+                        0x74, 0x6E, 0x69, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("int")*/     0x2B, 0x22, /*'\x222b'*/
+                        0x34, 0x65, 0x72, 0x65, 0x68, 0x74, 0x00, 0x00, /*ToUInt64Key("there4")*/  0x34, 0x22, /*'\x2234'*/
+                        0x6D, 0x69, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("sim")*/     0x3C, 0x22, /*'\x223c'*/
+                        0x67, 0x6E, 0x6F, 0x63, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("cong")*/    0x45, 0x22, /*'\x2245'*/
+                        0x70, 0x6D, 0x79, 0x73, 0x61, 0x00, 0x00, 0x00, /*ToUInt64Key("asymp")*/   0x48, 0x22, /*'\x2248'*/
+                        0x65, 0x6E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("ne")*/      0x60, 0x22, /*'\x2260'*/
+                        0x76, 0x69, 0x75, 0x71, 0x65, 0x00, 0x00, 0x00, /*ToUInt64Key("equiv")*/   0x61, 0x22, /*'\x2261'*/
+                        0x65, 0x6C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("le")*/      0x64, 0x22, /*'\x2264'*/
+                        0x65, 0x67, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("ge")*/      0x65, 0x22, /*'\x2265'*/
+                        0x62, 0x75, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("sub")*/     0x82, 0x22, /*'\x2282'*/
+                        0x70, 0x75, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("sup")*/     0x83, 0x22, /*'\x2283'*/
+                        0x62, 0x75, 0x73, 0x6E, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("nsub")*/    0x84, 0x22, /*'\x2284'*/
+                        0x65, 0x62, 0x75, 0x73, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("sube")*/    0x86, 0x22, /*'\x2286'*/
+                        0x65, 0x70, 0x75, 0x73, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("supe")*/    0x87, 0x22, /*'\x2287'*/
+                        0x73, 0x75, 0x6C, 0x70, 0x6F, 0x00, 0x00, 0x00, /*ToUInt64Key("oplus")*/   0x95, 0x22, /*'\x2295'*/
+                        0x73, 0x65, 0x6D, 0x69, 0x74, 0x6F, 0x00, 0x00, /*ToUInt64Key("otimes")*/  0x97, 0x22, /*'\x2297'*/
+                        0x70, 0x72, 0x65, 0x70, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("perp")*/    0xA5, 0x22, /*'\x22a5'*/
+                        0x74, 0x6F, 0x64, 0x73, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("sdot")*/    0xC5, 0x22, /*'\x22c5'*/
+                        0x6C, 0x69, 0x65, 0x63, 0x6C, 0x00, 0x00, 0x00, /*ToUInt64Key("lceil")*/   0x08, 0x23, /*'\x2308'*/
+                        0x6C, 0x69, 0x65, 0x63, 0x72, 0x00, 0x00, 0x00, /*ToUInt64Key("rceil")*/   0x09, 0x23, /*'\x2309'*/
+                        0x72, 0x6F, 0x6F, 0x6C, 0x66, 0x6C, 0x00, 0x00, /*ToUInt64Key("lfloor")*/  0x0A, 0x23, /*'\x230a'*/
+                        0x72, 0x6F, 0x6F, 0x6C, 0x66, 0x72, 0x00, 0x00, /*ToUInt64Key("rfloor")*/  0x0B, 0x23, /*'\x230b'*/
+                        0x67, 0x6E, 0x61, 0x6C, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("lang")*/    0x29, 0x23, /*'\x2329'*/
+                        0x67, 0x6E, 0x61, 0x72, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("rang")*/    0x2A, 0x23, /*'\x232a'*/
+                        0x7A, 0x6F, 0x6C, 0x00, 0x00, 0x00, 0x00, 0x00, /*ToUInt64Key("loz")*/     0xCA, 0x25, /*'\x25ca'*/
+                        0x73, 0x65, 0x64, 0x61, 0x70, 0x73, 0x00, 0x00, /*ToUInt64Key("spades")*/  0x60, 0x26, /*'\x2660'*/
+                        0x73, 0x62, 0x75, 0x6C, 0x63, 0x00, 0x00, 0x00, /*ToUInt64Key("clubs")*/   0x63, 0x26, /*'\x2663'*/
+                        0x73, 0x74, 0x72, 0x61, 0x65, 0x68, 0x00, 0x00, /*ToUInt64Key("hearts")*/  0x65, 0x26, /*'\x2665'*/
+                        0x73, 0x6D, 0x61, 0x69, 0x64, 0x00, 0x00, 0x00, /*ToUInt64Key("diams")*/   0x66, 0x26, /*'\x2666'*/
+                    ];
+
+                var dictionary = new Dictionary<ulong, char>(tableData.Length / (sizeof(ulong) + sizeof(char)));
+                while (tableData.Length > 0)
+                {
+                    ulong key = BitConverter.ToUInt64(tableData, 0);
+                    char value = (char)BitConverter.ToUInt16(tableData, sizeof(ulong));
+                    dictionary[key] = value;
+                    tableData = tableData.Skip((sizeof(ulong) + sizeof(char))).ToArray();
+                }
+                return dictionary;
+            }
+
+            // maps entity strings => unicode chars
+            private static readonly Dictionary<ulong, char> s_lookupTable = InitializeLookupTable();
+
+            public static char Lookup(char[] entity)
+            {
+                // To avoid an allocation, keys of type "ulong" are used in the lookup table.
+                // Since all entity strings comprise 8 characters or less and are ASCII-only, they "fit" into an ulong (8 bytes).
+                if (entity.Length <= 8)
+                {
+                    s_lookupTable.TryGetValue(ToUInt64Key(entity), out char result);
+                    return result;
+                }
+                else
+                {
+                    // Currently, there are no entities that are longer than 8 characters.
+                    return (char)0;
+                }
+            }
+
+            private static ulong ToUInt64Key(char[] entity)
+            {
+                // The ulong key is the reversed single-byte character representation of the actual entity string.
+                ulong key = 0;
+                for (int i = 0; i < entity.Length; i++)
+                {
+                    if (entity[i] > 0xFF)
+                    {
+                        return 0;
+                    }
+
+                    key = (key << 8) | entity[i];
+                }
+
+                return key;
+            }
+        }
+    }
+}
+
+#endif
diff --git a/SabreTools.RedumpLib.csproj b/SabreTools.RedumpLib.csproj
index f27e92f..9ae38b8 100644
--- a/SabreTools.RedumpLib.csproj
+++ b/SabreTools.RedumpLib.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <!-- Assembly Properties -->
-    <TargetFrameworks>net40;net452;net462;net472;net48;netcoreapp3.1;net5.0;net6.0;net7.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>net20;net35;net40;net452;net462;net472;net48;netcoreapp3.1;net5.0;net6.0;net7.0;net8.0</TargetFrameworks>
     <RuntimeIdentifiers>win-x86;win-x64;win-arm64;linux-x64;linux-arm64;osx-x64;osx-arm64</RuntimeIdentifiers>
     <LangVersion>latest</LangVersion>
     <Nullable>enable</Nullable>
@@ -26,12 +26,18 @@
   </ItemGroup>
 
   <!-- Support for old .NET versions -->
+  <ItemGroup Condition="$(TargetFramework.StartsWith(`net2`))">
+    <PackageReference Include="LinqBridge" Version="1.3.0" />
+  </ItemGroup>
   <ItemGroup Condition="$(TargetFramework.StartsWith(`net2`)) OR $(TargetFramework.StartsWith(`net3`))">
     <PackageReference Include="MinValueTupleBridge" Version="0.2.1" />
   </ItemGroup>
   <ItemGroup Condition="$(TargetFramework.StartsWith(`net2`)) OR $(TargetFramework.StartsWith(`net3`)) OR $(TargetFramework.StartsWith(`net40`))">
     <PackageReference Include="MinAsyncBridge" Version="0.12.2" />
   </ItemGroup>
+  <ItemGroup Condition="$(TargetFramework.StartsWith(`net3`)) OR $(TargetFramework.StartsWith(`net40`))">
+    <PackageReference Include="Net30.LinqBridge" Version="1.3.0" />
+  </ItemGroup>
   <ItemGroup Condition="$(TargetFramework.StartsWith(`net4`))">
     <PackageReference Include="System.ValueTuple" Version="4.5.0" />
   </ItemGroup>
diff --git a/Web/RedumpWebClient.cs b/Web/RedumpWebClient.cs
index eccca4b..fa80272 100644
--- a/Web/RedumpWebClient.cs
+++ b/Web/RedumpWebClient.cs
@@ -99,7 +99,7 @@ public static (bool?, string?) ValidateCredentials(string username, string passw
             }
 
             // HTTP encode the password
-#if NET35 || NET40
+#if NET20 || NET35 || NET40
             password = Uri.EscapeUriString(password);
 #else
             password = WebUtility.UrlEncode(password);