Detection is the result of the wrong AVG heuristic engine detects files as Trojan Horse PCMAV.exe SHeur2.CKXV (false alarms). Quite a lot of other antivirus software users: PCMAV Avast/Avast5 also wrong as the virus detected by the name of the Win32: Malware-gen.
The research we did shows, the false alarm occurs because the file PCMAV.exe on-pack with EXE packer who sometimes use malware (though it certainly can basically be used by other executable file). Heuristic Engine is designed less accurate by the manufacturer may cause false alarms.
PCMAV itself always pass through a strict quality control and improvised from time to time in order to be used safely. False alarms this has not occurred by the time we do quality control and hopefully quickly corrected by antivirus concerned. In the next PCMAV development, we anticipate this will also minimize the occurrence of false alarms by other antivirus.
So, you can still use PCMAV 3.0 safely. If you use another antivirus PCMAV together, be sure to only activate one antivirus at a time to prevent false alarms.