Hi Walter.

>But how can you limit the number of users when all data is on the SQL-server (thus the record lock strategy does not work here). How can this be as much bulletproof as we don't have any control over what a system administrator is doing. It should also handle crashed clients properly.

Just because the application's data is in SQL Server doesn't mean that "system" data has to be. Why not use a VFP table for this type of semaphore information?

Doug