INT 2F U - NORTON UTILITIES 5.0+ TSRs - ENABLE                                  
	AX = FE01h
	DI = 4E55h ("NU")
	SI = 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. identifier (see #03140)
Return: SI = 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. reply (lowercase version of entry SI, i.e. SI OR 2020h)
	AX = status
	    0002h successful (DISKMON, FILESAVE, EP)
	    FE00h successful (NCACHE-x, DISKREET)
Notes:	if the enable/disable calls are used on DISKMON or NCACHE-x, the status
	  report generated by the programs still indicates the previous state,
	  and DISKMON.INI is not updated
	apparently has no effect on DISKREET
SeeAlso: AX=FE00h,AX=FE02h