I have dual boot system:win xp home edition with sp2 and opensuse 10.3.
Problems are in win xp system,i cant run next programs:Ad-aware,Ccleaner,portableapps-Clamwin crashes and opera 9.5 too.Spyware Doctor says:there is no antivirus software- but
i just have installed Avast antivirus home edition!!!! some unknown reason Avast is Disabled!
these problems start s when i try play NFS Carbon demo.But my opensuse 10.3 run s smoothly no problems-so i need Your help. Is it malware,spyware or virus?

Sure sounds like Malware to me. You might want to post this in Spyware,Adware,Viruses and Highjack this Log. Follow instructions in sticky before posting there.