Error 0x88781227

Value: -2005396953 | 0x88781227 | 2289570343

What does it mean ?

DMUS_E_AUDIOPATHS_IN_USE  
Pchannels are invalid because audio paths have been set.
Value: 4647 | 0x1227 | 0b0001001000100111

Where does it come from ?

FACILITY_DIRECTMUSIC  
Direct Music (part of DirectX) - Audio
Value: 2168 | 0x878 | 0b100001111000

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