Sense, Go to Add/Remove and see if there is any refernce to 'IST svc'. Remove it if it exists. Install Spybot, update it and then run it. http://www.safer-networking.org/en/download/index.html Install HijackThis and post your scanlog here. http://www.spychecker.com/program/hijackthis.html Run the Spybot again in Safe Mode (Press F8 when window boots). Make sure these files get deleted Winshow.dll ISTsvc (the folder in Program Files) win32us.exe Thanks, -LoGiN