Error 0x800C0015

Value: -2146697195 | 0x800C0015 | 2148270101

What does it mean ?

INET_E_REDIRECT_TO_DIR  
The requested resource is a directory, not a file.
Value: 21 | 0x0015 | 0b0000000000010101

Where does it come from ?

FACILITY_INTERNET  
Wininet related (Internet APIs)
Value: 12 | 0x00C | 0b00001100

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