Xitogent Update
Every time a new release is available if you have your auto-update enabled upon installation of the Xitogent, an auto-update tool will install the latest version on your server in a matter of seconds, without any interruptions.
The Xitogent updater is placed inside the Xitogent directory in the Program Files:
C:\Program Files\Xitogent\xitogent-updater.exe
So you can manually update Xitogent on your server using that executable file any time you need.