Scott,
>[Seems that you are trying to make a container to behave like a form :)
>Why not using forms without titlebar? I've done this for an outlook style interface with top level form and forms instantiated on right side of main form. ]
>
>You are correct, we are trying to make a container behave like a form. And, I like your idea....
>Do you foresee any gotchas in using this methodology? Like data sessions issues or anything like that?

Forms are quite heavyweight classes: in vfp6 you could grind a system down by instantiating too many form classes. Vfp8 made the situation better, but I'd still measure the impact in vfp9 on typical to lower end target machines first and try out a max test if thinking about TS or citrix deployment FIRST.

20 form classes should be ok if one such "master form" (to avoid the term "form set") is used by the process, but if you need a few of such "master forms" per process might tax resources too much.

HTH

thomas