Other issues could be that you need to right-click on the command prompt and choose Run as Administrator. Turning off UAC has been known to fix the issue of failed attempts to register DLLs. If you are not able to register a DLL file and you end up getting an error message saying that the attempt to register the DLL file failed, you might want to disable UAC (User Account Control) in Windows.
Otherwise, you might see messages like: The module failed to load If you have a 64-bit version of Windows installed and the DLL is 32-bit, then you should run the command using the 32-bit version of regsvr32: %systemroot%\SysWoW64\regsvr32 Īlso, if you are using a 32-bit DLL, then make sure to move the file from the %systemroot%\System32 folder to the %systemroot%\SysWoW64 folder first before running the command. Note that if you get an error message, it could be that you are using the 64-bit version of the command and not the 32-bit version. That’s it! Now your DLL has been successfully added to the registry and can be used by Windows programs. Step 3: Now click OK and you should get a confirmation message that the DLL has been registered successfully. Regsvr32 “C:\Windows\System32\myfile.dll”
