Error 0xC00D4E85

Value: -1072869755 | 0xC00D4E85 | 3222097541

What does it mean ?

MF_E_AUDIO_PLAYBACK_DEVICE_IN_USE  
The requested audio playback device is currently in use.
Value: 20101 | 0x4E85 | 0b0100111010000101

Where does it come from ?

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

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