INT 2F - ZyXEL ZFAX v2+ - UNINSTALL                                             
	AX = DB01h
Return: AX = status
	    0000h successful
	    0001h ZFAX is busy
	    0002h another program resident above ZFAX
Note:	this function unhooks the vectors taken by the ZFAX TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user.  The name comes from the name of the DOS function call used to remain in memory after termination. if they have
	  not been hooked by other TSRs and releases the TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user.  The name comes from the name of the DOS function call used to remain in memory after termination.'s memory
	ZFAX v2.x crashes the contributor's machine when this function is
	  called
SeeAlso: AX=DA01h,AX=DB00h"ZFAX",AX=DB02h"ZFAX"