hmmm could you zip a small version of your project and send it to my e-mail address ? then I could have a look at it (mail@matthias-auer.net) !
The commercial version should without a doubt be able to be used from external languages !

get the C# wrapper:
for A7.85.4 and A8.30.4, Version 2.3.9
at http://acknexwrapper2.matthias-auer.net/ or visit the thread