Error 0x000D1144

Value: 856388 | 0x000D1144 | 856388

What does it mean ?

NS_S_WMPEFFECT_TRANSPARENT  
Request to the effects control to change transparency status to transparent.
Value: 4420 | 0x1144 | 0b0001000101000100

Where does it come from ?

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

Other Errors for FACILITY_MEDIASERVER