>You would be incorrect here....
>
>Christof clarified one point that I could not recall, that you have to recompile in 5.0 before the class can be used in 5.0. This was the big advantage with 6.0 - that most elements remained compatable, like the DBC, classes, form. Menus are not compatible.

The problem I was getting was that I had to recompile the class in 5.0 if I used it in 6.0 - this was getting a bit tedious. I am now keeping a separate set of libs for 5 and 6 and life is a little easier. I only *support* 5.0 and all new development is done in 6.0 so I have had no problems with updating 5.0 libs and having to maintain two sets of libs.