>ja that could work, but i think it is possible to have for example a DS 1 and the next one could be DS 1000 with nothing inbetween. i have currently in my testing a DS 1 and a DS 3, no DS 2. so that loop would have to be pretty high to try to ensure you got all. i don't know what the rules are when vfp creates new DS and related rules.

Not under normal circumstances it's not. VFP starts at 1 and increments from there. So in order to have datasession 1 and datasesison 1000, you'd have to open 999 private datasession forms, and close the first 998 of them. Not a very likely scenario IMO.

You must have a 2 private datasession forms (or session classes) and closed the first one to see what you've seen.