COMODO Firewall Installer has stopped working

When I run the comodo installer, i get a “COMODO Firewall Installer has stopped working” error message. I am running Vista Ultimate x64. I do not have any other firewall software installed other than the windows firewall, which I disabled. I also tried disabling all antivirus software running (due to previous install issues with some antivirus software). Any other suggestions?

Two possibilities: there are registry entries from a previous install that need to be removed, or the installer may have become corrupted. Try running regedit and searching for Comodo and then deleting any entries for the firewall. reboot and try installing. If that fails, try downloading the installer again and repeating the registry cleaning before installation.
If this does not solve the problem, see the links near the top of:
https://forums.comodo.com/help_for_v2/faqsthreads_read_me_first-t9364.0.html