Error 0xC00D1B7A

Value: -1072882822 | 0xC00D1B7A | 3222084474

What does it mean ?

NS_E_SOURCEGROUP_NOTPREPARED  
The source is not yet prepared.
Value: 7034 | 0x1B7A | 0b0001101101111010

Where does it come from ?

FACILITY_MEDIASERVER  
Windows Media Server
Value: 13 | 0x00D | 0b00001101

Other Errors for FACILITY_MEDIASERVER