Like i said, i fixed it with using regsvr32 c:/windows/system32/fastdo.dll or regsvr32 c:/windows/syswow64/fastdo.dll
It should work afterwards using the full file path.
I registered fastdo.dll by putting it in system32 or syswow64 and used the full file Path when registering the file becus i got the same error the file wasnt supported on 2008r2.