tasksys.exe is known to be a type of adware. This file, and possibly others, are running in the background on your PC. Removing these files as soon as possible is very important.

tasksys has been linked to the malware W32.Botter.A@mm Worm, and should be cleaned quickly. Adware and malware often masquerade as important files, so backing up your PC before removing files is a very good idea.

To be sure that you are not removing important files, use Computer Associates's free scan of your PC.

Since tasksys.exe was found on your PC, there is a good chance that more adware is lurking. The best way to avoid problems with adware and other types of adware is to scan your PC for free and get rid of all the spyware files right now.