It is not possible to delete data in data entry files with VI. You would need to either delete manually or use BOI and a script.

That's what I thought.  BOI is out of the question, our reseller delayed giving the BOI key to us until our support expired and then refused to do so unless we renewed our support contract.

You should have access to the key even if your support expired. I am not 100% sure about this but you should be able to create an account on the customer portal and see all your keys and serial numbers. Have you tried that? Have you contacted Sage?

We didn't have access to the keys or the serial numbers online, at least at the time, and we've given up on Sage.  Multiple calls boiled down to Sage doesn't support MAS if you bought it through a reseller.  We were told the reseller should provide us with the key, but he still refused to do so until we renewed, and raised the price $4000.  I have very uncomplimentary things to say about Sage, MAS, and our reseller, but I'm stuck having to work with MAS until we get to a point where I can't make it do something we need it to do.

Thank you, though.  You and many others here are very helpful.

Keith, have you gone here customers.sagenorthamerica.com  and created an account, yes or no?

It had a different URL at the time, as it was before the December 2011 rebranding, but yes.  it had pretty much the same information available as MAS:  the product key, agreement end date, total user count, module list, and our first registration information; but no BOI key.  At this point I have no interest in the BOI key anyway.  We are switching from MAS, it is just a question of when.