Hello Everyone. I am just getting around to trying FileChecker for the first time. Sorry it's taken me so long. To highten security of one's PC (which is always my overriding conern), I've read it's good to monitor your AV and firewall .exe files, but not definition files. In general, what other types of files should one monitor (again, to heighten security)? P.S. A list like this might not be a good idea for a "sticky" thread for this forum.