>Thom,
>
>You have to do it yourself. I create a table with one record per ID I need to generate. Each record has the name of the ID and the last number used. I have a function that accepts the name of the ID as a parameter. The function finds the appropriate record in the table of IDs, locks it, then increments it and returns the new value. The record locking ensures that two users are never assigned the same ID. You can then put a call to the function in the default for the field or call it in your code whenever you need to add a record.
>

Thom, there is an example of this technique in the TasTrade sample app that ships with VFP.