Everytime i update Autocad Map, I have to ask the same question. I wish I knew where to find this in the help documentation. Whenever there is an update, there is usually a change in version of the activeX reference. So for instance below, when I use this line of code in 2004 I used this: Set amap = acadApp.GetInterfaceObject("AutoCADMap.Application.2") Has the Application.2 changed in Map 3D 2005? If so what is the version number? And in the future where can I find this info? Thanks, kb