Working with backup sets : Microsoft SQL Server database backup sets (Windows) : About Microsoft SQL Server database backup sets : Modifying database information (Microsoft SQL Servers)
 
Modifying database information (Microsoft SQL Servers)
1. Browse the Backup Sets tree, right-click the backup set you require, and select Properties.
The Backup Set Properties screen appears.
2. Click the Database tab.
If Access integrated with share is selected, only the credentials from the section Dump location will be available for you to edit. Windows authentication will be performed when DS-Client connects to the database.
NOTE:  “Access integrated with share” will not work if your network is using Windows Integrated Security. (Even though you can select this option, Windows Integrated Security will ignore credentials from the “Database Info” section.)
F1 Help: "Set Properties - Database tab"
3. Click OK to save the changes.