>Yes, I do have little documentation which shows how to make the function call. I can implement the dll successfully in VB. Since the initial program was written in VFP about 3 yrs back, I was trying to implement the changes in VFP. I can move to VB but have to re-write the whole thing.

Can you post documentation which shows how to make the function call and code in VB so we can compare it to VFP code?