>I have written a couple of test DLLs in VFP and they work if I call them from VFP. However, I want to call them from C, Delphi, and VB but the 'entry point' is missing. When I write DLLs in C, I have to declare functions as WINAPI - is there anything similar in VFP?
>

When you compile a DLL in VFP, it doesn't contain a C-API interface... it is a COM object with an IDispatch interface. You use the COM object in VB simmilar to how you would call it from VFP.

First, you have to add a reference to the VFP COM object in your VB project... then in code you do something to... (don't hold me to this, I don't use VFP to much.) ...instantiate and get a reference to the COM Object.

Dim oX as Object
Set oX = CreateObject('MyDLLName.MyClassName')

Once you have that reference you can call PUBLIC methods and properties as you would and class in VFP or VB...

oX.DoMyClassMethodOne()

HTH,
BOb