diff --git a/README.RU.md b/README.RU.md
index e998cf3..54668f4 100644
--- a/README.RU.md
+++ b/README.RU.md
@@ -1,7 +1,7 @@
 [![EN](https://user-images.githubusercontent.com/9499881/33184537-7be87e86-d096-11e7-89bb-f3286f752bc6.png)](https://github.com/r57zone/ProtonShell/blob/master/README.md) 
 [![RU](https://user-images.githubusercontent.com/9499881/27683795-5b0fbac6-5cd8-11e7-929c-057833e01fb1.png)](https://github.com/r57zone/ProtonShell/blob/master/README.RU.md) 
 # ProtonShell
-Легковесная оболочка для веб-сайтов, простых веб-приложений, работающая на базе системного браузера Microsoft Edge. На её основе можно сделать отдельное окно для Google Docs, чата Twitch, клиента инстаграмма для ПК, с пользовательским js скриптом или какое-то веб-приложение в своём окне.
+Легковесная оболочка для веб-сайтов, простых веб-приложений, работающая на базе системного браузера Microsoft Edge. На её основе можно сделать отдельное окно для Google Docs, ChatGPT, чата Twitch, клиента инстаграмма для ПК, с пользовательским js скриптом или какое-то веб-приложение в своём окне.
 
 ## Скриншоты
 ![](https://github.com/r57zone/ProtonShell/assets/9499881/ca14a06b-4c3f-420a-8ec8-a742a2ae5f8d)
diff --git a/README.md b/README.md
index 24dd9f7..b57fd40 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 ← Choose language | Выберите язык
 
 # ProtonShell
-Lightweight shell for websites, simple web applications, built on the Microsoft Edge system browser. Based on it you can make a separate window for Google Docs, Twitch chat, instagram client for PC, with js userscript or some web application in its own window.
+Lightweight shell for websites, simple web applications, built on the Microsoft Edge system browser. Based on it you can make a separate window for Google Docs, ChatGPT, Twitch chat, Instagram client for PC, with js userscript or some web application in its own window.
 
 ## Screenshots
 ![](https://github.com/r57zone/ProtonShell/assets/9499881/ca14a06b-4c3f-420a-8ec8-a742a2ae5f8d)
diff --git a/Source/Config.ini b/Source/Config.ini
index 4c64f12..6329c57 100644
--- a/Source/Config.ini
+++ b/Source/Config.ini
@@ -1,3 +1,5 @@
+# https://github.com/r57zone/ProtonShell
+
 [Main]
 Title=Test App
 # Application folder address - "%FULLPATH%/", clear the value of "File" if you want to load the website.
@@ -8,14 +10,19 @@ URL=https://google.ru
 OpenExternalLinks=1
 # Example of the path - "%FULLPATH%/UserScript.js"
 UserScript=
+# Change system proxy while using the app
+SystemProxy=
+# Return to previous system proxy after closing the app (if you use proxy), 1 - on, 0 - off
+ReturnPreviousProxy=0
 
 [Window]
-Width=640
-Height=360
+Width=720
+Height=480
 SaveSize=0
 
 # None = 0, Sizeable = 1, Single = 2, Dialog = 3, SizeToolWin = 4, ToolWindow = 5
 BorderStyle=1
+# 1 - on, 0 - off
 HideMaximize=0
 
 # Normal = 0, Maximized = 1, FullScreen = 2
diff --git a/Source/Unit1.dfm b/Source/Unit1.dfm
index e85be04..71bd114 100644
--- a/Source/Unit1.dfm
+++ b/Source/Unit1.dfm
@@ -2,8 +2,8 @@ object Main: TMain
   Left = 0
   Top = 0
   Caption = 'Main'
-  ClientHeight = 480
-  ClientWidth = 640
+  ClientHeight = 479
+  ClientWidth = 636
   Color = clBtnFace
   Font.Charset = DEFAULT_CHARSET
   Font.Color = clWindowText
@@ -13,19 +13,18 @@ object Main: TMain
   Position = poDefault
   OnClose = FormClose
   OnCreate = FormCreate
+  OnDestroy = FormDestroy
   TextHeight = 13
   object EdgeBrowser: TEdgeBrowser
     Left = 0
     Top = 0
-    Width = 640
-    Height = 480
+    Width = 636
+    Height = 479
     Align = alClient
     TabOrder = 0
     UserDataFolder = '%LOCALAPPDATA%\bds.exe.WebView2'
     OnCreateWebViewCompleted = EdgeBrowserCreateWebViewCompleted
     OnNavigationCompleted = EdgeBrowserNavigationCompleted
     OnNewWindowRequested = EdgeBrowserNewWindowRequested
-    ExplicitWidth = 792
-    ExplicitHeight = 467
   end
 end
diff --git a/Source/Unit1.pas b/Source/Unit1.pas
index a9f53ce..015bd06 100644
--- a/Source/Unit1.pas
+++ b/Source/Unit1.pas
@@ -4,7 +4,8 @@ interface
 
 uses
   Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
-  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, WebView2, Winapi.ActiveX, Vcl.Edge, IniFiles, ShellAPI;
+  Vcl.Controls, Vcl.Forms, Vcl.Dialogs, WebView2, Winapi.ActiveX, Vcl.Edge, IniFiles, ShellAPI,
+  Registry, WinInet;
 
 const // https://stackoverflow.com/questions/66692031/how-to-set-useragent-in-new-delphi-tedgebrowser
    IID_ICoreWebView2Settings2: TGUID = '{EE9A0F68-F46C-4E32-AC23-EF8CAC224D2A}';
@@ -27,6 +28,7 @@   TMain = class(TForm)
       Args: TNewWindowRequestedEventArgs);
     procedure EdgeBrowserNavigationCompleted(Sender: TCustomEdgeBrowser;
       IsSuccess: Boolean; WebErrorStatus: TOleEnum);
+    procedure FormDestroy(Sender: TObject);
   private
     { Private declarations }
   public
@@ -36,8 +38,8 @@   TMain = class(TForm)
 var
   Main: TMain;
   WinOldWidth, WinOldHeight, WinOldTop, WinOldLeft: integer;
-  WinSaveSize, WinSavePos: boolean;
-  EdgeUserAgent: string;
+  WinSaveSize, WinSavePos, ReturnPrevSystemProxy: boolean;
+  EdgeUserAgent, SystemProxy, PrevSystemProxy: string;
   OpenExternalLinks, LoadUserScript: boolean;
   UserScriptFile: TStringList;
 
@@ -93,6 +95,42 @@ procedure TMain.EdgeBrowserNewWindowRequested(Sender: TCustomEdgeBrowser;
   end;
 end;
 
+procedure ProxyActivate(Enable: boolean);
+var
+  Reg: TRegistry;
+begin
+  Reg:=TRegistry.Create;
+  try
+    Reg.OpenKey('Software\Microsoft\Windows\CurrentVersion\Internet Settings', False);
+    Reg.WriteBool('ProxyEnable', Enable);
+    Reg.CloseKey;
+    InternetSetOption(0, INTERNET_OPTION_SETTINGS_CHANGED, 0, 0);
+  finally
+    Reg.Free;
+  end;
+end;
+
+procedure SetProxy(const Server: String);
+var
+  Reg: TRegistry;
+begin
+  Reg:=TRegistry.Create;
+  try
+    Reg.OpenKey('Software\Microsoft\Windows\CurrentVersion\Internet Settings', False);
+    if ReturnPrevSystemProxy then begin
+      if Reg.ValueExists('ProxyServer') then
+        PrevSystemProxy:=Reg.ReadString('ProxyServer')
+      else
+        PrevSystemProxy:='';
+      ShowMessage(PrevSystemProxy);
+    end;
+    Reg.WriteString('ProxyServer', Server);
+    Reg.CloseKey;
+  finally
+    Reg.Free;
+  end;
+end;
+
 procedure TMain.FormClose(Sender: TObject; var Action: TCloseAction);
 var
   Ini: TIniFile;
@@ -183,7 +221,24 @@ procedure TMain.FormCreate(Sender: TObject);
   if Ini.ReadBool('Window', 'StayOnTop', false) then
     FormStyle:=fsStayOnTop;
 
+  // System proxy
+  ReturnPrevSystemProxy:=Ini.ReadBool('Main', 'ReturnPreviousProxy', false);
+  SystemProxy:=Trim(Ini.ReadString('Main', 'SystemProxy', ''));
+  if SystemProxy <> '' then begin
+    SetProxy(SystemProxy);
+    ProxyActivate(true);
+  end;
+
   Ini.Free;
 end;
 
+procedure TMain.FormDestroy(Sender: TObject);
+begin
+  if ReturnPrevSystemProxy then begin
+    SetProxy(PrevSystemProxy);
+    ProxyActivate(true);
+  end else if SystemProxy <> '' then
+    ProxyActivate(false);
+end;
+
 end.