Error 0x800411A6

Value: -2147216986 | 0x800411A6 | 2147750310

What does it mean ?

The service cannot access the Exchange 5.5 service. The account used by the search service may not be an Exchange administrator, or the site or organization settings on the search host may be invalid.
Value: 4518 | 0x11A6 | 0b0001000110100110

Where does it come from ?

COM/OLE Interface management. FACILITY_ITF is designated for user-defined error codes returned from interface methods
Value: 4 | 0x004 | 0b00000100

Other Errors for FACILITY_ITF