The RDU Manager and the Multi Company Manager can update themselves. Here is how to check for an update by hand.
- Right-click the icon of the RDU Manager or the Multi Company Manager in the system tray.

You see this menu:

- Click Check for Update.
If there is an update, you see this window (There is an update version ... Do you want to update it ?):

- Click OK. The program is updated and starts again.
When the update is finished, the program shows this message:

If there is no update, the program says "You have the latest update available.". A newer build of the same version is offered as an update too.
Automatic check
The program also checks by itself. Set the interval in File > Settings, in the field Check for updates every :.
If the update fails
- The program must be able to write in its own folder. If it cannot, it offers to move itself to the shared folder. Answer yes.
- On Linux the file Downloader.jar must be in the same folder as the program.
- Otherwise choose Contact Support in the tray menu and send the logs.