Jim,

>I don't. All of my work now is web based and uses disconnceted data access. Trying to insure a successful save (pessimistic approach) is a complete waste of time. Everything MUST use the optimistic approach and deal with collisions when they happen.

I was not talking about insuring a succesfull save. I Just was talking about semphores and mutexes. For example how would you limit the number of concurrent users on an application. How would you denie access to a certain module if someone else is working with it ? I guess you don't do this (mainly because it is not easy to do).

Walter,