>Is there some system imposed limit to the number of open forms?
>
>Or, is there some performance-related limit to the number of open forms?
>
>I have an application in which the user can easily create many open forms ... actually, since it is a "reporting" application, the user need never close any form, as he can "drill down" to a new form for more detail or revisit previous forms to "drill down" a different way.
>
>So, it seems that some users will not be very tidy and and they will open forms and leave them around forever (much like the top of the desk in my office).
>
>What I'm curious about is if I need to be attentive to clean up after such users, or whether I can just let them be.
>
>Thanks

IIRC, Walter Meester did some tests, with the result that VFP got slower when many aliases were open, even if the aliases were open in different work areas.

But I would not impose a strict limit; the user's desktop will probably get too cluttered way before any other reasonable limit is reached. Or, you could show a warning after opening "n" forms, but still allow the form to open. The warning might read something like: "Opening too many forms may hamper system performance. Proceed at your own risk."