Ok, I screwed something up, or maybe something got screwed up by itself. A few hours ago, I my Norton AntiVirus found a virus on my system. It called the virus "Backdoor Polydrop Virus" and said iuppkojea.exe was infected (this file was sitting on drive C: in the Windows directory and I put this file in quarantin). After I closed NAV and tried to start another application I got an error message saying that Windows cannot find the exe file asociated with this program or I may have typed the name of the file incorectly or another program can't find a system file, etc. Sometimes when I restart and try to click my programs again I would get a message that iexplorer.exe, for example, is not a valid 32bit application. Each time I restart my machine I get an error message: "Windows cannot access the specified device, path or file. You may not have an appropriate permission to access them", and no matter what I do now I can't open any of my applications. By the way, in the list of active programs(Ctrl-Alt-Del) I only see Explorer, however I can only get to my Windows Explorer through Start/Search command and if I click a file with an extention other than EXE, the appropriate application would start and work fine. Clicking an exe file would give the message described above.
At one point , I even tried to reinstall WinMe, but I'm stuck on Agreement Confirmation because my mouse won't work in the Windows Setup mode for some reason.
Please someone help me out !!!

BTW, I was able to fire up my Internet connection through the Favorites folder, I'm happy at least that worked.

Thank you in advance.