INT 2F U - Novell Netware - RPRINTER, NPRINTER - INSTALLATION CHECK             
	AX = DE00h
	BL = 00h
Return: AL = FFh If Rprinter/Nprinter Installed
	BX -> Program Segment PrefixThe Program Segment Prefix is a 256-byte data area prepended to a program when it is loaded.  It contains the command line that the program was invoked with, and a variety of housekeeping information for DOS.  See also INT 21h Function 26h. N/Rprinter.exe