I have the same problem. Below is a full bug report as requested, plus a Comodo Firewall Pro Configuration Report in hopes that it will be of some use to the developers. The only solution, after hours of trying to figure out what was going on, was to uninstall Comodo. I may try to install a prior version, but for now am running Windows Firewall :o
CPU (32 bit or 64 bit)
AMD Turion 64 X2 Mobile Technology TL-64 2.20 GHx (64 bit)
Operating System information (including Service Pack Version)
Windows Vista Ultimate, Service Pack 1
Actively-running security and utility applications (Optional if you post a Comodo Firewall Pro Configuration Report)
Attached report as JMB0687 CIS_Report.txt. Note that Comodo is not currently running as I had to uninstall it to get operational again. I am currently running Avast and Windows Firewall.
Specific symptoms of the bug, and steps you can take to reproduce it (step by step).
After Comodo update, vast majority of applications will not open. This includes Avast, MS Word, IE, Firefox, Thunderbird, Streets and Trips, iTunes, Notepad, etc. What worked was Windows Explorer, All programs in Control Panel (at least those I tried), all programs run at the DOS prompt, all programs run using the Run command. Two noteable exceptions, both Windows Installer and System Restore would not work, making it impossible to uninstall any programs or fail back to an earlier state.
Specific steps you have taken to try to resolve it.
Stopped a bunch of services, killed a bunch of processes, attempted to uninstall a bunch of programs (with no luck since Windows Installer failed), attempted 3 Restores to days prior to the problem (again, with no luck since System Restore failed). Then had the thought that it might be related to Comodo. Fortunately, the Comodo uninstaller in the Comodo menu group worked. Restarted the computer and everything worked again. Attempted to reinstall Comodo and the install failed at some unknown point. It looked like it was working until the very end when it suddenly said that the rollback completed successfully.
Brief description of your Defense+ and Firewall+ mode (Custom, Train with safe) plus mention if you modified any setting in ADVANCED section of D+ and F+ (Optional if you post a Comodo Firewall Pro Configuration Report)
Attached report as JMB0687 CIS_Report.txt.
If you pc reboots or you have a BSOD post in BSODs: Please add your minidump files here
No reboot or crash.
Report if you are using an Administrator account Or a Limited User account. Vista users please Report if you have UAC Disabled or Enabled (Optional if you post a Comodo Firewall Pro Configuration Report)
Using an Administrator account, have UAC Disabled
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