Thanks for your help, I am using windows xp home edition service pack 2. I
also installed microsoft anti spyware several months ago without a problem. I
noticed that if I click the uninstall icon in the microsoft anti spyware
folder nothing happens. I went into add remove programs it says, "The windows
Installer Service could not be accessed. This can occur if you are running
Windows in safe mode, or if the windows Installer is not correctly installed.
Contact your support personnel for assistance." However, if I scroll down in
the add remove programs I see that I have Windows Installer 3.1 (kb893803). I
hope this info helps. Thanks again for your response.