Error 0x80320015

Value: -2144206827 | 0x80320015 | 2150760469

What does it mean ?

FWP_E_KM_CLIENTS_ONLY  
The call is allowed for kernel-mode callers only.
Value: 21 | 0x0015 | 0b0000000000010101

Where does it come from ?

FACILITY_FWP  
Firewall Platform
Value: 50 | 0x032 | 0b00110010

Other Errors for FACILITY_FWP