This tip was submitted to the searchSecurity Tip Exchange Contest by user Ronald Tuik. Let other users know how useful it is by rating the tip below. If your computer is acting weird all of the sudden, there is the possibility that you've been infected by a virus. One quick way to find out is to check the automatically starting programs and services by running msconfig.exe and choosing the last tab. This only works on Windows 98+, though. Windows 95 users can use poledit, which is located on the Win95 CD. When doing this, check for anything weird, like automatically starting vbs-scripts, programs with unusual names, or programs starting up from unusual places (such as the Recycle Bin).
This was first published in August 2001