Error 0x80043605

Value: -2147207675 | 0x80043605 | 2147759621

What does it mean ?

FTE_E_FILTER_SINGLE_THREADED  
The system attempted to load an apartment threading model filter marked in a multi-threaded filter daemon. The document will be retried in a single-threaded filter daemon process. Since multithreaded filtering is more efficient, try to obtain the version of the filter that is multi-threaded.
Value: 13829 | 0x3605 | 0b0011011000000101

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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