F-Prot "unknown virus" in BSplayer
 

i use f-prot antivirus and on my current installation (bsplayer137.826.exe) the realtime protector says
C:\Program Files\Webteh\BSplayer\bsplayer.exe could be infected with an unknown virus.

Does anyone know what this is or why it is happening? I cannot "disinfect" the .exe and have uninstalled and reinstalled the program and that has not helped.
I love using the bsplayer, but now I'm unable to - plese help!