Hi all !
Please, let me tell you something about trymedla. There is no need to rebuild anything to crack an application 'protected' with this layer.
I suceeded in cracking recently this (over 600Mo) game : Sec0nd 5ight.
This target is available to dowbload as a 15 min. demo.
Protected by trym*dia, it could be broken with only a few bytes changing in the original file.
Trace into the proggy until you reach the nagscreen saying 'xx min letf' or 'time out : now buy the game !'.
Then, try to break just after you return from that screen.
Then, using F10, just try to find a stupid and simple test EAX,EAX + JZ/ZNZ.

If you reverse the jump, the game starts.
Try to find back the routine which has been called just before this JZ/JNZ test.
Put a breakpoint onto this routine.
Close the proggy and start it again.
What happened ? Softice break at your breakpoint.
You are right in the 'LICENSE testing routine'. It returns 1 if GOOD or 0 if BAD.
If you want to reverse-engineer this, just do it : obfuscating is only a bit annoying... not really a big deal.
There is no intergrity check in this protection, then, you can include a modifying code just after decompression routine to modify the result from License check.

No more bad protection on these proggies.

have fun... bye !
frip.