It may be time to change products

I have NAV 2010 on several machines, and I am about ready to uninstall it and throw away all my copies.  I have a hex editor that is incorrectly flagged as a trojan. (falser positive)  I have the hex editor software on 2 machines that are connected over a network.  Each machine has the directories included in the "scan exclusion" list, and for a while, that sort-of worked.  Now each machine deletes the software on the other machine and when I try to add the network path to the exclusion list, it says the path is invalid.  I would like to add the program to a signature exclusion list, but that doesn't seem possible.  The only info in the "security details" is the fact that it is flagged as a trojan.