(Mailbot and Interfun) please help!!

[Vexta]

Hi guys...
I wonder if anyone can help. I ran a scan with spybot this morning and the scan returned an error message:

Error during check!
Mailbot (Datei C:\WINDOWS\win.ini Kann nicht geöffnet werden. The process cannot access the file because it is being used by another process.

Then I run the scan again and it returned the same message but with 'Interfun' instead of Mailbot.

Any ideas???

Much Appreciated
Vex