Hi Nancy!
>You can't drag and drop your subclasses. It has been loudly suggested to the VS.NET dev team that they allow us to add our own visual classes to the toolbox, but I don't know whatever happened to the suggestion.
I haven't studied it enough yet to know all the details of it, but I've just been dragging and dropping McNeish's mmButton, mmTextbox, etc onto forms from the toolbox, so it can be done. His install instructions included adding a new tab on the toolbox, then populating it by pointing to the DLL with his subclasses of .NET classes.