In order to assist you further may I ask what Monarch v10 version are you installing, is this a stand alone or maybe a VLA?
May I also ask if you can find that you can uninstall Monarch in Control Panel>Programs and Features>Unisntall a program, and if so can you please uninstall it, then install Monarch as administrator by right clicking on the executable an running as admin.
Hope this helps.
I have uninstalled and reinstalled as suggested, but it makes no difference. The version we have is 10.5 Pro, its not a stand alone version as it is server based. The monarch.exe is run from the Server. I have gotten it to open after I edited the registry, correcting the location of the Program folder to the correct one, but no Models will open for me, the netexec.exe file crashes, Error 1000 in the Event log. Other file types will open.