Vista: Error 0x80070005 + runtime32.dll fails?

Here is one for the experts - it is driving me crazy for a week now - pelase read carefully to the end, 'cause I tried already a lot of common approaches...

from time to time I get the message that runtime32.dll stiopped working and has to be closed. Windows gives me the following solution: "This problem was caused by lmpgd10.ax (Follow the steps in the article to unregister this binary, e.g. regsvr32 /u lmpgd10.ax)"

wenn I try to execute the above command I get to follwing error:

"RegSvr32: module lmpgd10.ax was loaded but there was an error in call to the DllUnregisterServer (code 0x80070005)" + it recommend looking up a solution online :)

OK - now the code 0x80070005 means "access denied" so far my WinKnowledge goes

I follwed the advice to check teh registry on "DCOM Default Access" and I don't have a value in there (which should be like good ???)

I tried following some advice to tweak the DCOM general settings, but that was a walkthrough for XP-SP2 and not Vista...

Thanks!