Error 0x800726F9

Value: -2147014919 | 0x800726F9 | 2147952377

What does it mean ?

DNS_ERROR_CLIENT_SUBNET_ALREADY_EXISTS  
A client subnet with this name already exists on the DNS server.
Value: 9977 | 0x26F9 | 0b0010011011111001

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

Other Errors for FACILITY_WIN32