Error 0x800720B9

Value: -2147016519 | 0x800720B9 | 2147950777

What does it mean ?

ERROR_DS_NOTIFY_FILTER_TOO_COMPLEX  
Notification filter is too complex.
Value: 8377 | 0x20B9 | 0b0010000010111001

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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