Re: Comodo Firewall Version 3: "No More IRP Stack Locations"

Platform: Windows XP Home Ed. SP2
Ram: 2 GB
Processor: P4 2.4
Graphics: Nvidia 7800 GS [latest driver]
Virus scanners: Avast AntiVirus 4.8 and PC Tools Threatfire 3
Clean from viruses/malware/adware etc.

Hi, I recently attempted to install Comodo Firewall v.3

Prior to installation, I uninstalled ZoneAlarm, ran CCleaner and Regscrub to eliminate any residual files left over from ZoneAlarm. Rebooted computer.

Then I installed Comodo. Upon reboot, when the computer gets to the Windows XP Welcome screen, after a couple seconds I get a BSOD with the following error:

“No More IRP Stack Locations”

I attempted to install Comodo well over 6 mnths. ago as well, with the exact same error, so I gave up and went back to ZoneAlarm. At the time, I was running Avast as well. Are there known complications with running Avast Antivirus and Comodo together?
The reason I am not wishing to stay with ZoneAlarm is because it is now conflicting with Avast AntiVirus 4.8.

Any idea what the problem is?
I have heard of one user reinstalling Windows XP and all his programs. I have no interest in such an extreme measure.