Martha,

They may also need to run regsvr32 on the good mscal.OCX to make sure the registry entries for MSCAL.Calendar and MSCAL.Calendar.7 have the guid that has the right entry for HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{8E27C92B-1264-101C-8A2F-040224009C02}\InprocServer32 the default value should display the correct path to the ocx.

>If I understand correctly, unless they're very proficient in Office it's unlikely this should ever be an issue? If that's the case, I'm pretty sure we're safe to just rename. Again, thank you very much!