I tell you the last. Because it doesen´t work sonce yesterday:
Games for Windows - Live V3.0 //this was after it
Definition Update for Windows Defender - KB915597(Definition 1.63.10121.0) - 7.08.2009
NET Framework 3.5 Service Pack 1(KB951247)x86 Sprachpaket 7.8.2009

After that the updates are older and it would make no sense why my pc react 3 later.

I recommend you temporarily uninstall these updates, and see if this fixes the issue.

Okay i test it

They are not shown under:Deinstall Updates.

http://www.technipages.com/uninstall-a-windows-update-in-vista.html

right click uninstall doesn't work? For any of them?

It works, buit the updates which are shown there, aren´t the same - they are all older. (1.8.2009)

That's unusual..

Is there any chance of you uploading your project? Then we can test it ourselves.

That´s a bad idea. I am just the programmer of it. And I´m not allowed to upload it. See: http://www.opserver.de/ubb7/ubbthreads.php?ubb=showflat&Number=283058&page=2 - first post

That´s really to bad. I´ll ask spike if he could test it.

Yeah, see if it works on spike's computer. That should work.

Question: How did you made a WMB while you have Lite-C free??
Are you using the trial??