In an ActiveX/COM client/server process, if a Client app tries to launch ExtendSim as a Server, you might get the error message Run-time error 429: ActiveX component can’t create object. This occurs when the operating system restricts ExtendSim from registering as an OLE/COM server.

For ExtendSim to be able to interface with Excel and other apps, launch ExtendSim with Administrative privileges so that it can complete the process of registering itself as an OLE/COM server. To do that, either right-click the ExtendSim application and select Run as Administrator. Or contact your IT or Admin and have them launch ExtendSim in your user account with the correct Admin permissions (once that happens, it won’t be required again).