https://forums.autodesk.com/t5/objectarx-forum/proxy-enabling-problem/m-p/1049615#M30245 This one's got me stumped.<BR /> <BR /> When trying to load my dbx, after opening a drawing made with objects in the dbx, I get eNotThatKindOfClass when trying to open a referenced custom object from inside another custom object's dwgInFields. If I load the dbx first, then open the drawing, it works fine.<BR /> <BR /> Anybody got any ideas on what the problem could be? It looks to me like my custom classes aren't being registered properly despite the calls to dxInit and acrxBuildClassHeirarchy, but only when trying to enable existing zombies in the currently open dwg. Weird. Fri, 04 Jun 2004 06:38:24 GMT Anonymous 2004-06-04T06:38:24Z https://forums.autodesk.com/t5/objectarx-forum/proxy-enabling-problem/m-p/1049615#M30245 This one's got me stumped.<BR /> <BR /> When trying to load my dbx, after opening a drawing made with objects in the dbx, I get eNotThatKindOfClass when trying to open a referenced custom object from inside another custom object's dwgInFields. If I load the dbx first, then open the drawing, it works fine.<BR /> <BR /> Anybody got any ideas on what the problem could be? It looks to me like my custom classes aren't being registered properly despite the calls to dxInit and acrxBuildClassHeirarchy, but only when trying to enable existing zombies in the currently open dwg. Weird. Fri, 04 Jun 2004 06:38:24 GMT https://forums.autodesk.com/t5/objectarx-forum/proxy-enabling-problem/m-p/1049615#M30245 Anonymous 2004-06-04T06:38:24Z