Hi Chris, > When programming in VFP is it reasonable to sub-class all the VFP classes > to create "MyBaseClassLib.vcx", > and then when starting all new projects sub class from that? > OR > is it best to create a new class library based on the VFP base classes for > each project What i do is having a basic library, that contains VFP base clases plus other objects that i mostly use (navigation bar for example). I have a copy of this VCX for each project, but for all practical purposes is the same library. Then i have an application library wich i use to customize every project. This handles the initialization, shutdown, displaying of main menu, etc.. I have a different copy of this VCX for each project. Also i have a security library, that i use to handle user access to app. and their forms, wich i include in the projects that need it. And finally i usually have a VCX specific for objects on the domain of the particular application i'm developing. HTH, J. Luis