My computer will not allow me to add remove programs, use any media player, outlook express, yahoo or aol instant messengers. I either get an error with unable to locate wmplayer.exe or can't find rundll32.exe. The only things working correctly are internet explorer and microsoft word. Think it is a virus ar some type of problem. Have tried to download hijackthis, and it will download but it will not open. It just says that it cannot find it. Please if anyone can give me any direction on this. Thanks