Error 0x88781138

Value: -2005397192 | 0x88781138 | 2289570104

What does it mean ?

DMUS_E_PORT_NOT_RENDER  
The specified operation could not be carried out because the port is a render port.
Value: 4408 | 0x1138 | 0b0001000100111000

Where does it come from ?

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

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