Having no idea what one may come here seeking, I make no statement as to what order you should review this material. However, those who would wish a path to follow may find this order acceptable: Accessing COM Objects from Assembly.doc Standard for COM in MASM32.doc Adapting Quick Editor for COM.doc Creating a COM object in ASM.doc MyCom2 and the CoLib.doc Inside CoLib.doc UsingCoLib to Build a Visual Control.doc