I've got Python 20 and numerical python installed and running, i.e., I can run python scripts and call import module Numerical and use arrays,etc. I've also been successful at calling python scripts from C/C++ code (MSVC++ 6.0) - Py_Initialize(), Py_BuildValue() etc. and building the de-bug version of python20.dll (python20_d.dll) so I can debug-step through the code. However, I can't seem to be able to call numpy functions from C/C++ - PyArray_FromDims(), etc. My code will compile and link but, at runtime, I get an exception error. It seems that either I need to create a numpy.dll that will live in winnt/system32 or somehow need to modify python20.dll to include the numpy functions. How do I do that? Thanks.