Paul,

Strictly a guess... could it be trying toemit an error message (VFP that is, not your program)? Something along the line of 'no file selected' which is about the only thing I would guess could come up on a AFIELDS.

Good luck,

Jim N

>This is my first attempt at creating a DLL. Of course it's not going smoothly. I'm getting 1031: User-interface operation not allowed at this time.
>
>I understand that I can't have a user-interface in an in-process DLL. The line of code that it's choking on is:
>
>lnfields = afields(lafields)
>
>What on this line would cause a UI error?
>
>paul