Error 0x8004501F

Value: -2147200993 | 0x8004501F | 2147766303

What does it mean ?

SPERR_RULE_NOT_DYNAMIC  
An attempt was made to modify a non-dynamic rule.
Value: 20511 | 0x501F | 0b0101000000011111

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

Other Errors for FACILITY_ITF