FD Online has 2 parts of the implementation:
1. Server side
2. Client side
(1) A Server-side OS (Operating System) should be as below:
Windows 7 Enterprise or Ultimate -or-
Windows 8 Enterprise -or-
Windows 10 Enterprise or Education -or-
Windows XP SP3
It also works with Windows Server 2008 and newer.
(2) A Client-side OS (Operating System) can be Windows/MAC.
If it is MAC, Microsoft RDP App needs to be installed.
For Windows OS, there is no need of Microsoft RDP App.