Even if you have removed ZoneAlarm, this message may keep appearing. You have to go into the registry and remove any occurrances of "vsdata". This can be done by going to Start, Run, and typing "regedit". When the registry editor opens up, go into the Edit menu and pick Search. Search for the string "vsdata" and delete all keys that have it in them. After you're done, you can reinstall ZoneAlarm if you want to. I have run across this multiple times and this always works.