Thanks for your replies Andrew.

That's how I have been using so far. MSDN describes the command as follows:

quote-----------
Tells the Visual FoxPro preprocessor to treat the contents of a specified header file as if it appeared in a Visual FoxPro program.
endquote------------

The example however shows use for #DEFINE's.

Anyone know how to acheive this? I would allow for "inheritance" between different base classes I.E. if you want some similar behaviour in testbox and editbox etc...