I can tell this is not always the case. I use both CB and KeePass on Win7 x64
Maybe only with certain configurations of one of the tools?
I don't know the details (and this is why I'm asking for help

), but I've tried this: using Process Monitor (sysinternals) to record KeePass activity. A huge log was generated (tens of thousands of events!). So I filtered out every event that had not "comodo" in some of its fields. The result is attached. Can some expert have a look on it?
By the way, the test just related was made after reinstalling CB. As expected, KeePass started to crash again, and the file I've sent was logged during a session of KeePass that ended with another crash. Obviously, I've uninstalled CB and KeePass does not crash anymore.