i can not open on control pannel ,system and application,it says impossible to open the file : rundll32.exe

Hello,stefi & Welcome

Till the Pros of this forum see this do this here

Go for free online Virus scans here:

http://housecall.trendmicro.com/hou.../start_corp.asp
http://www.pandasoftware.com/activescan/

Be sure and put a check in the box by "Auto Clean" before you do the scan. If it finds anything that it cannot clean have it delete it or make a note of the file location so you can delete it yourself.

HGD