After protecting with execryptor, my program started to cause false positives with some antiviruses. Certainly, I am far from thought that execryptor adds viruses to my program. Most likely, it just uses protection techniques that activate these antiviruses as a side effect. The problem is that most users after receiving an alert from their antivirus will just remove my program. They will not care to check if this is false positive or not. I contacted execryptor support several times on this issue. However, they decided to ignore my requests. I did not receive any answer for 2 months, though they promise 48-hour support to registered users.