With the help of the almighty Miekiemoes, we were able to determine one of your error problems is from Zone Alarm. You can't run more than one firewall because it can cause problems. You also have the McAfee Firewall installed, I suggest that you unistall the Zone Alarm.
Also, can you check to see if webcheck.dll is still present in your system32-folder.
Thanks,
Excal