The customer or their IT person, must install the following programs on the MAC Before VitaLogics can be installed by VitaLogics Support.
Parallels Desktop for Mac (they will go online and google parallels windows for mac-this is not something we give them)
Windows Operating System
Once the customer has installed both Parallels and a Windows Operating System, then VitaLogics can be installed on the Windows desktop.
Refer to article:
If Cloud or Azure does not need Parallels