Working with backup sets : Microsoft SharePoint Server backup sets (Windows) : Before you begin
 
Before you begin
• This option must be enabled by your service provider from the DS-System.
• Install the DS-Recovery Tools Service on the Microsoft SharePoint computer. For detailed instructions, see the Client Software Installation Guide.
For more information, refer to the following Knowledge Base articles:
• “Backup / restore of Microsoft SharePoint Server (DS-Recovery Tools)”
• “Backup / restore of Microsoft SharePoint Server farm configuration (DS-Recovery Tools)”