INT 2F - REDVIEW - INSTALLATION CHECK                                           
	AX = BE00h
Return: AL = FFh if installed
Program: REDVIEW is a public-domain 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. by Alexandr Novy and Petr Horak which
	  copies data sent to standard output to standard error when the
	  former has been redirected to a file, thus allowing the data to
	  be seen on the screen at the same time it is captured in a file