Error 0x800721B3

Value: -2147016269 | 0x800721B3 | 2147951027

What does it mean ?

ERROR_DS_INVALID_SEARCH_FLAG_TUPLE  
The search flags for the attribute are invalid. The tuple index bit is valid only on attributes of Unicode strings.
Value: 8627 | 0x21B3 | 0b0010000110110011

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

StackOverflow

Other Errors for FACILITY_WIN32