Firewall program wont go away

In windows vista security center under firewall, when I click on "show me the firewalls on this computer" both windows firewall and a firewall program I no longer use ,and I have uninstalled, show up. Any ideas how to get rid of this? Its not in list of add and remove programs, its not listed in Cprogram files, or in the windows install clean-up utility?

It's probably a line of text within a preferences file. Try searching for various preferences and settings documents, then search the document for the name of the program. Don't forget to backup the file before you tinker with it.