Thank you Mephisto for these informations (in many ways, it's exactly what I've seen when tracing into this protection).
Nevertheless, I'm still thinking that creating a few bytes patch to crack tr*media is :
1 - simpler for lazy people like me
2 - a lot smaller result than a complete rebuilt exe (5 or 6 kb vs many Mb)

This way, It could be possible to make an 'pretty simple' automated tool to crack 'every' application protected by the last version of this protection.


once more, thanx.
frip.