Error 0x8004002A

Value: -2147221462 | 0x8004002A | 2147745834

What does it mean ?

TAPI_E_ADDRESSBLOCKED  
You are not permitted to call this number.
Value: 42 | 0x002A | 0b0000000000101010

Where does it come from ?

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

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