Error 0xC00D7179

Value: -1072860807 | 0xC00D7179 | 3222106489

What does it mean ?

MF_E_TEST_SIGNED_COMPONENTS_NOT_ALLOWED  
WMDRM ITA cannot allow the requested action for the content as one or more components are not properly signed.
Value: 29049 | 0x7179 | 0b0111000101111001

Where does it come from ?

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

Other Errors for FACILITY_MEDIASERVER