diff --git a/addons/common/config.cpp b/addons/common/config.cpp
index 144e7d96c6..e4727d3b01 100644
--- a/addons/common/config.cpp
+++ b/addons/common/config.cpp
@@ -77,3 +77,26 @@ class ACE_Tests {
     mapConfigs = QPATHTOF(dev\test_mapConfigs.sqf);
     cfgPatches = QPATHTOF(dev\test_cfgPatches.sqf);
 };
+
+class ACE_ExtensionsHashes {
+    class ace_advanced_ballistics {
+        dll = "bbfbd04bced4e4766298903944ff2d0e3da7586a";
+        dll_x64 = "95bdf812ebb52d4e87c4b1b980dfa785d4f980a7";
+    };
+    class ace_artillerytables {
+        dll = "f6db1088a08e1c98f3718159a653df3ba11df773";
+        dll_x64 = "d3f76b3b95ffe9c6ab6ded137ae41edcab81a9f0";
+    };
+    class ace_break_line {
+        dll = "c1f0b83ced1f36849c8aaf23f27c889d7d7e1344";
+        dll_x64 = "8622873962f4c4d3bbe05891242f21ba69845d11";
+    };
+    class ace_clipboard {
+        dll = "cde2eceb8bac3a119c53a957e332f1a2f9cd8dcb";
+        dll_x64 = "d5e8660018b9c9e870a0d4e6005a65afe48b00d3";
+    };
+    class ace_fcs {
+        dll = "58b36db51209f61f2b63fc2469b1c74efd581012";
+        dll_x64 = "4db527f03bbe71d5004647ad6b12d0263b0c3af9";
+    };
+};
diff --git a/addons/common/functions/fnc_checkFiles.sqf b/addons/common/functions/fnc_checkFiles.sqf
index 7b90a1b0a8..3299e90b94 100644
--- a/addons/common/functions/fnc_checkFiles.sqf
+++ b/addons/common/functions/fnc_checkFiles.sqf
@@ -145,6 +145,31 @@ if (isArray (configFile >> "ACE_Extensions" >> "extensions")) then {
     WARNING("extensions[] array no longer supported");
 };
 
+
+if (hasInterface && {_platform == "windows"}) then {
+    if (isFilePatchingEnabled) exitWith {};
+    {
+        private _extName = configName _x;
+        private _extensionType = "dll";
+        if (productVersion select 7 == "x64") then { _extensionType = format ["%1_x64", _extensionType]; };
+        private _expectedHash = getText (_x >> _extensionType);
+
+        private _extensionHash = "";
+        {
+            if ((_x getOrDefault ["name", ""]) == _extName) exitWith {
+                _extensionHash = _x getOrDefault ["hash", ""];
+            };
+        } forEach allExtensions;
+
+        if (_extensionHash != _expectedHash) then {
+            private _errorMsg = format ["Extension %1 wrong version [%2 vs %3].", _extName, _extensionHash, _expectedHash];
+            ERROR(_errorMsg);
+            ["[ACE] ERROR", _errorMsg] call FUNC(errorMessage);
+        };
+    } forEach ("true" configClasses (configFile >> "ACE_ExtensionsHashes"));
+};
+
+
 ///////////////
 // Check server version/addons
 ///////////////
diff --git a/tools/getExtensionHash.py b/tools/getExtensionHash.py
new file mode 100644
index 0000000000..307538b413
--- /dev/null
+++ b/tools/getExtensionHash.py
@@ -0,0 +1,32 @@
+import pathlib
+import os
+import hashlib
+
+addon_base_path = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
+
+extensions = {}
+
+for file in os.listdir(addon_base_path):
+    path = pathlib.Path(file)
+    extension_type = "dll"
+    if path.suffix == ".dll":
+        key = path.stem
+        if key.endswith("_x64"):
+            key = key.removesuffix("_x64")
+            extension_type += "_x64"
+
+        with open(file, 'rb') as file_read:
+            sha1 = hashlib.sha1()
+            data = file_read.read()
+            sha1.update(data)
+            arr = extensions.get(key, {})
+            arr[extension_type] = sha1.hexdigest()
+            extensions[key] = arr
+
+print(f"class ACE_ExtensionsHashes {{")
+for key, values in extensions.items():
+    print(f"    class {key} {{")
+    for type, hash in values.items():
+        print(f"        {type} = \"{hash}\";")
+    print(f"    }};")
+print(f"}};")