Download ext-ms-win-ntuser-windowclass-l1-1-0.dll file for Windows 7, Windows 8, Windows 10 and fix ext-ms-win-ntuser-windowclass-l1-1-0.dll is missing or not found dll error. The latest version of ext-ms-win-ntuser-windowclass-l1-1-0.dll file is v6.3.9600.16384 which is a 32 with a file size of approximately 3.5 kb. Microsoft Corporation is the developer of ext-ms-win-ntuser-windowclass-l1-1-0.dll and the file belongs to ApiSet Stub DLL.
DLL stands for Dynamic Link Library. ext-ms-win-ntuser-windowclass-l1-1-0.dll is a file that contains code, resources and data that other programs can use. Thus, Dlls provide a way to modularize applications so that their functionality can be updated and reused by other applications. Dll's also help to reduce application size and memory footprint since many applications can share the same code contained in a single Dll file such as ext-ms-win-ntuser-windowclass-l1-1-0.dll.
If you are here because your seeing ext-ms-win-ntuser-windowclass-l1-1-0.dll errors in your Windows such as :
There are number of ways to fix ext-ms-win-ntuser-windowclass-l1-1-0.dll errors. Below you will find 2 such ways:
Where do I put ext-ms-win-ntuser-windowclass-l1-1-0.dll file? Download ext-ms-win-ntuser-windowclass-l1-1-0.dll and copy it to the application’s installation folder.
Make sure to download ext-ms-win-ntuser-windowclass-l1-1-0.dll 32-bit file for 32-bit Windows operating system and ext-ms-win-ntuser-windowclass-l1-1-0.dll 64-bit file for 64-bit Windows operating system if they are available. Most new Windows systems would probably be a 64-bit one. You can check to see if your computer is running a 32-bit or a 64-bit version of Windows by doing:Windows 10 and Windows 8.1
After you are done with above installation instructions, try restarting the application throwing ext-ms-win-ntuser-windowclass-l1-1-0.dll is missing error.
If that doesn’t fix the error, copy the ext-ms-win-ntuser-windowclass-l1-1-0.dll to the systems directory. This can vary between Windows OS versions. Check out the systems directory path for different Windows versions below:
Restart your Windows and see if the error is fixed.
If the error persists, try to register the ext-ms-win-ntuser-windowclass-l1-1-0.dll in Windows registry. This can be done by using the “REGSVR32” command prompt and giving the dll file ext-ms-win-ntuser-windowclass-l1-1-0.dll.
Make sure you run the command as administrator from the Run Box.
Once you are done registering the ext-ms-win-ntuser-windowclass-l1-1-0.dll in the Windows system’s registry, you should be good to go. Restart your Windows once again and ext-ms-win-ntuser-windowclass-l1-1-0.dll missing error should be fix.
Clicking on 'Download ext-ms-win-ntuser-windowclass-l1-1-0.dll' button below will take you to the download page where you will see list of ext-ms-win-ntuser-windowclass-l1-1-0.dll versions with bit, file size and other details of of the file. It is recommended to download the latest version of ext-ms-win-ntuser-windowclass-l1-1-0.dll to fix dll errors which is v6.3.9600.16384.