Error 0x80072081

Value: -2147016575 | 0x80072081 | 2147950721

What does it mean ?

ERROR_DS_SINGLE_VALUE_CONSTRAINT  
Multiple values were specified for an attribute that can have only one value.
Value: 8321 | 0x2081 | 0b0010000010000001

Where does it come from ?

FACILITY_WIN32  
Provides a way to handle error codes from functions in the Win32 API as an HRESULT. (Error codes in 16 - bit OLE that duplicated Win32 error codes have also been changed to FACILITY_WIN32)
Value: 7 | 0x007 | 0b00000111

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