Noticed a few days ago that something just wasnt right on my PC. Over the past 2 weeks iv installed CCleaner and its suddenly dissapeared from my hard drive. When i click on the icon the system starts by SEARCHING, cannot find application. So i installed it for the 3rd time and within hours it was completely gone. Then, i started clicking on various applications on my harddrive. Xsitepro2 - Refuses to start up Xhttpheder - Refuses to start up Market S. - Same issue Spybot Search And Destory - Installs but cant run it So i reboot and try to load SAFE MODE. System refuses to go into safe mode. After i reboot normally i reinstall Spybot S&D and scan the drive for a virus. It finds; dropper.4maxiums. According to what this thing does; it corrupts existing applications in the programs directory which need to be reinstalled. Ok so S&D finally removes this nasty. I scan the system with a few other tools and it seems this damn thing is gone. The problem is, i still cannot re-install any of the above applications. When i click on CCleaner it pops open then closes quickly. I cant install S&D. It just load up and closes quickly. All in all, it has crippled many of my applications and im looking for a solution. If this thing is no longer on my drive, why cant in use certain applications? Its continues to act as if this trojan is still present. I used regedit and manually looked for the dropper files but they are not there so S&D must have remove them. Im baffled. This is the only information i found on this virus Code: http://forums.spybot.info/showthread.php?t=57189 I also installed TuneUp Utilites around the same time. But i dont believe its responsible for corrupting my files or preventing my applications from being opened. At this point im thinking of doing a restore. Im running XP. What are the suggestions?