Windows 7: unable to register DLL - Error Code:0X80004005

When I tried to register a COM DLL,

regsvr32 rpcrt4.dll

I get the following error message:

`The module "c:\windows\system 32\"rpcrt4.dll" was loaded but the call to DllRegisterServer failed with error code 0X80070006.

How do I fix this problem? Please help.


According to this:

Run it in a elevated command prompt.