This started when I uninstalled McAfee, and installed a new Antivirus program. Now I get an error message when I try to play a game off of a disc, when I bring up certain programs, like AIM, when I try to click the "Windows Security Alerts" icon in my taskbar, it comes up.

Here is the error message..

"Windows host process (Rundll32) has stopped working. I have get a registry cleaner, ran it, still not getting rid of the problem.

I am using Windows Vista Basic