using my dll

[Kherydan]

I develop a simple c++ dll in order to create my own complex functions and the call them from swfkit.
But i have a problem.
When I call

Dll.registerFunction("deskdlltest.dll","fnDeskdllt est","testfn","stdcall","short","char*");

it usually enter in my dllMain inizialization method, but when i try to use the function I've registered with the following line:

trace(testfn(buf));

It doesn't do nothing ???

Had I made any mistake in the dll creation? :-\
There's some configuration in my dll project I miss?
Thanks

Giò

[SWFKit]

Please attach the dll source code at here(just the source code of the fnDeskdlltest function), we will test it and make it work.