If I create a control and insert it into a project and then need to break binary compatibility to add new functionality to the control, what is the easiest way rebuild the control and reference it in the old project without having to reinsert the new control in every spot that it was used. The way I currently do it is by editing the control's information in the .frm and .vbp files via notepad, but there has to be another way. Essentially I wanna do a control "find/replace"...the old functionality is there it was just that new methods and properties were added.