Yesterday, a visitor sent me this link. It explains how to crash the xp-AntiSpy by a invalid profile. Since you can export existing profiles to a file, you certainly can import profiles too. And there was the bug. I did not range check the values read from the file. And if you selected the invalid profile, the xp-AntiSpy tried to check a setting that never existed and that is the cause for the crash.
So I fixed this possible vulnerability and released the version 3.97-5. Nothing else did change.