INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - UNHOOK TIMER INTERRUPT
	AH = 0Ah
	DX = handler ID
Return: CF clear if successful
	CF set on error
	    AL = error code
SeeAlso: AH=09h"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63/AH=24h"BW-TCP"
SeeAlso: INT 64/AH=01h"BW-NFS"