Error 0x000D1109

Value: 856329 | 0x000D1109 | 856329

What does it mean ?

NS_S_WMPCORE_MEDIA_CHILD_PLAYLIST_OPEN_PENDING  
The open for the child playlist associated with this media is pending.
Value: 4361 | 0x1109 | 0b0001000100001001

Where does it come from ?

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

Other Errors for FACILITY_MEDIASERVER