P.S.:
This seems to be Adware or an Adware-downloader:
INFOso if Cleaning out your IE-Cache (Temp.Int.files) & downloaded programm files
in IE doesn't help, and you can't manage deleting the file manually
-> run Ad-Aware & SPYBOT
-> See Eddy's page above, or "VirusRemoval" below in my sig
- a Hijackthis-Log is needed
and SECURE YOUR BROWSER BETTER !!!