Error 0x800A0037

Value: -2146828233 | 0x800A0037 | 2148139063

What does it mean ?

CTL_E_FILEALREADYOPEN  
DirectShow: The function attempted to open a file that was already open.
Value: 55 | 0x0037 | 0b0000000000110111

Where does it come from ?

FACILITY_CONTROL  
Used by OLE controls. You can find a complete list of the error codes in OLECTL.H - errors from: VB, VBScript, JScript, ADO, third party controls
Value: 10 | 0x00A | 0b00001010

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