"Application could not start..."

I’ve never had this happened before. I have the latest Comodo Firewall (just the firewall) and using Windows XP SP3. When I turned on my PC this morning I receive the following message:

“Application could not start because of an error connecting to database.”

Comodo firewall won’t start and I don’t know what to do.

You are not the only one this has happened to recently.

You running MS Security Essentials by any chance?