Handling of FlexNet/FlexLM

[java3ever]

Hello,

There is an application (written in C++/.NET/Java) that uses FlexLM.
I have a license file for the last-but-one version but I would like to adapt it to the current version.
I haven't been able to identify the parts where the license is handled, because the application is split up in many parts and I couldn't even find the part where the license file is read (ProcMon just shows the main application which launches some subprocesses).

Is there a way to generate the SIGN Parts of the license file?
Bruteforcing seems to be impossible, because I don't have the part checking the sign and the number of possibilites is just too big (36^12).

Thanks!