Flexlnet 11.5 target

[rcer]

I am trying to reverse a target which uses flexnet 11.5 licensing scheme.
I have recovered the correct encryption seeds, and have build lmcrypt for SIGN=12 character licenses. Licenses can be checked out with the lmtools utility, but when I try to run the program I receive the following error
"invalid FLEXLM license file syntax"

An older version of this application used SIGN=16 character licenses, so maybe I get above error because I am generating 12 character licenses.

Does anybody know how to build lmcrypt for SIGN=16 character licenses?

rgds

rcer