The module ### was loaded but the call to DllRegisterServer failed with error code 0x80040201

When trying to register a DLL, i got the below error message

The module ### was loaded but the call to DllRegisterServer failed with error code 0x80040201

I have performed following steps and the error resolved

Start Menu / "Right Click Command prompt and select run as administrator"

Try to execute the DLL registration command "regsvr32 c:\.....\yourfile.dll"

* This solution is applicable to Windows Vista, Windows Server 2008 and Windows 7.

By AlpesH Shah