Does MATLAB 6.5 COM Builder support neural network concept

Hi,

We are using the function Mfiles which use workspace variables and
sim function (neural network concept).

We got the error while creating the dll using MATLAB COM Builder Ver
3 (MATLAB 6.5).
The err is:

The MATLAB Compiler does not currently support MATLAB object-oriented
programming.

How can i overcome? It is very Urgent.

Thanks in advance.