diff --git a/ExplorerDiff/ExplorerDiff.ahk b/ExplorerDiff/ExplorerDiff.ahk
new file mode 100644
index 0000000..fb5831e
--- /dev/null
+++ b/ExplorerDiff/ExplorerDiff.ahk
@@ -0,0 +1,48 @@
+; ExplorerDiff - ExplorerDiff.ahk
+; author: teric
+; created: 2022 2 2
+
+ExplorerDiff() {
+    files := explorer_get_selected()
+
+    if (!files.Length()) {
+        a2tip("ExplorerDiff: Nothing selected!")
+        return
+    } else if (files.Length() != 2) {
+        MsgBox, Please select 2 files exactly!
+    }
+
+    if !FileExist(ExplorerDiff_Path) {
+        if (ExplorerDiff_Path == "")
+            MsgBox, No Diff app set! Please open the dialog and set one!
+        else
+            MsgBox, Unable to find set diff app! The path seems to be invalid!`n`n %ExplorerDiff_Path%`n??
+        Return
+    }
+
+    file1 := files[1], file2 := files[2]
+    size1 := FileGetSize(file1), size2 := FileGetSize(file2)
+
+    if (size1 == size2) {
+        identical := true
+        Loop
+        {
+            FileReadLine, line1, %file1%, %A_Index%
+            FileReadLine, line2, %file2%, %A_Index%
+            if ErrorLevel
+                break
+            if (line1 != line2) {
+                identical := false
+                Break
+            }
+        }
+        if (identical) {
+            a2tip("ExplorerDiff: Files are identical!")
+            Return
+        }
+    } else
+        a2tip("ExplorerDiff: Sizes different ... (" size1 "/" size2 ")")
+
+    cmd := """" ExplorerDiff_Path """ """ files[1] """ """ files[2] """"
+    Run(cmd)
+}
diff --git a/ExplorerDiff/a2module.json b/ExplorerDiff/a2module.json
new file mode 100644
index 0000000..cd03871
--- /dev/null
+++ b/ExplorerDiff/a2module.json
@@ -0,0 +1,50 @@
+[
+  {
+    "author": "eric",
+    "date": "2022 2 2",
+    "description": "Easier file diffing in the Windows Explorer.\nSelect 2 files, Ctrl+D: tell if files are identical already without opening your diff tool. Select one file in Explorer, have another selected in another Explorer window: Offer to diff these right away.",
+    "display_name": "",
+    "tags": [
+      "file",
+      "code",
+      "wip"
+    ],
+    "typ": "nfo",
+    "url": "",
+    "version": "0.1"
+  },
+  {
+    "disablable": true,
+    "enabled": true,
+    "functionCode": "ExplorerDiff()",
+    "functionMode": 0,
+    "key": [
+      "Ctrl+D"
+    ],
+    "keyChange": true,
+    "label": "Diff selected files",
+    "multiple": true,
+    "name": "ExplorerDiff_Hotkey",
+    "scope": [
+      "ahk_class CabinetWClass",
+      "ahk_class #32770"
+    ],
+    "scopeChange": true,
+    "scopeMode": 1,
+    "typ": "hotkey"
+  },
+  {
+    "file": "ExplorerDiff.ahk",
+    "typ": "include"
+  },
+  {
+    "browse_type": 1,
+    "file_types": "Executable (*.exe)",
+    "label": "Diff application path",
+    "name": "ExplorerDiff_Path",
+    "save_mode": false,
+    "typ": "path",
+    "value": ".",
+    "writable": false
+  }
+]
\ No newline at end of file