Stop FTGateOffice
Backup the ...\FTGateOffice\Config folder complete
Backup the c:\spool folder complete
Re-install FTGateOffice to the same paths as the backed up installation
Stop FTGateOffice
Delete the ...\FTGateOffice\Config folder complete
Copy the backed up config folder to the same path as the one deleted in 3.
Delete the Spool folder complete
Copy the backed up spool folder to the same path as the one deleted in 5.
Restart FTGateOffice
Check all settings are as you expect.
This procedure can be used for moving FTGateOffice to another machine, just backup from one machine and restore to the new one. After completing the restore process, it is worth checking the settings to ensure they are all as you would expect them...