>I keep thinking back to one of your earlier posts, where you said that by logging into an NT box under a certain account, you did NOT get the ISO errors. That really sounds like a permissions issue.
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>It might be worth while to hire an outside NT guru, someone specifically NOT part of your organization and who has no preconceived notion of how NT security "should" be set up. Get an opinion on your current structure. You could also get a test machine set up with a different structure if that may be more "industry-standard".
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>Do you have any high-security features in place (just a WAG - maybe something like Kerberos)?

To answer the last Q first, no, nothing like that.

Yes, the account is jerry-rigged to account for users using both Win9x and NT. The NT accounts are set up by creating a sort of dummy local account, and then "adding" the main domain account to the local account. I agree this is somehow related to the problem. Why it only shows up in a very large app, and never in smaller apps or in vfp directly is the biggest question, though, if it is an account/permissions-related problem.

The only difference is that this app is 5MB, and uses a lot of memory + many DBCs/tables/views/cursors simultaneously. The app did run fine when I first had only the local account, though it was pain to use, I could not access anything beyond my servers. Also, the app ran fine for about two months even with the new configuration, until suddenly becoming error-prone again. Even a fresh NT install did not fix it.

It *could* be related to SMS somehow, possibly. I think maybe this machine did not have SMS installed when the app was working. That thought just now struck me. Hmm...

I have tried asking for an NT domain account, but have not been granted one as of yet. That might solve it too, but again, any fix that is non-standard will not be easy to get through LAN and their plans.

Also, these are 64MB machines. I have a free 128 now, I think I'll request a new NT install, see if that helps...before I ask for money to hire an NT guru. That kind of spending requires major paperwork & approval. And what I really need is an NT guru familiar with vfp, not an easy person to find :)