I am able to verify Windows firewall settings while logged on as Admin., previous antivirus was an earlier version of Avast!. While logged on as admin, Avastsvc and AvastUI both show as running processes. When logged on as limited user,however, only Avastsvc appears in process list. When I attempt to access Windows Security Center or Firewall settings from control panel while logged on as limited user, I see an error message about "C:\WINDOWS\system32\rundll32.exe" "application not found". I just removed the "XP Anti-Spyware" malware prior to loading the new Avast!....do I need to correct a registry entry, perhaps?