This app installs one instance of SEP sesam Client on the current host. This is needed on every host you want to be backed up. Note that it will not work without a SEP Sesam Server instance anywhere in your domain,
 
You will have to select the HTTP-Interface (<host>:11000) when executing a backup task, otherwise the backup will not run due to firewall restrictions. If you want to use other methods like STPD, you will have to set the portrange "11002-11007" via Options -> STPD Options for each client.

You can find a quick install guide for the installation on Linux, Windows and Mac OS in the SEP Wiki.

For further information please consult the Admin Manual and the SEP sesam license.