Can't delete program GEADsBN.exe - what is it?

I am having some difficulties deleting several related 'rogue' programs. They have been placed in folder c:\program files\vptqwpvp and are called: GEADGsBN.exe; GEADGsBN.DLL; NBsGDAEG.exe; cnml.exe and profile.dat.

When I use Taskmaster to stop the process it appears to stop them but they return almost immediately. I deleted all references to them in the Registry that I could find (but obviously missed some), and I have tried to delete them, but am denied permission because they are being used.

What are these files? What damage can they do (they appear to be related to Outlook Express and caused several reboots when I tried to use OE).

How can I get rid of them?

Thanks

harryvm