Int 16/AX=FA04h/DX=5945h

AX = FA04h
DX = 5945h

Return:
CF clear
DI = 4559h
BL = hotkey disable flag (nonzero if hotkey disabled)

Note: This function is a NOP under VWATCH, merely returning CF clear/DI=4559h

See Also: AX=FA00h - AX=FA05h