Ray,

I was a C/C++ programmer before I started using FoxPro so I've always been case sensitive aware *s*

It is documented though. From the VFP5 help file topic DECLARE DLL:

FunctionName Specifies the name of the shared library function to register in Visual FoxPro. Function names passed in this parameter are case-sensitive.

>Thanks a lot. The punctuation was the problem. I can't find any docs on this. Where did you look?