>I haven't played with creating classes by program code much. How would I add a class created with "define class xxx as custom" to a class library. I have created the class by code but I would like to add it to a class library.

For any practical purpose, the .prg is your class library. You can pass the prg name as the classlib in any newobject() call.

Now if you wanted to drop it onto your visual class... you can just do a this.newobject("oObj", "mycustom", "mycustom.prg") in the .load or .init of your visual class, and you're done. The visual representation of the custom class on a form or class in design mode isn't much anyway, and if you have more than 2-3 of these, you don't know which is which anyway until you check their properties. Which is why I didn't count this among the "practical purposes".