INT 2F - VGAsave v1.93 - INSTALLATION CHECK                                     
	AX = C000h
Return: AL = FFh if installed
	    BX = segment of resident code
Program: VGAsave is a freeware VGA-specific, mouse-aware screenblanker by Bill
	  Javurek
Range:	AH=C0h to AH=FFh, selected by scanning for a free multiplex number
Note:	the transient portion of VGAsave compares the first 38 bytes of the
	  resident code (addressed through BX) against its own copy of the
	  resident code to complete the installation check
SeeAlso: INT 14/AX=AA01h,INT 2F/AH=93h
Index:	screen saver;VGAsave
                                                                                

INT 2F - AD-DOS - INSTALLATION CHECK                                            
	AX = C000h
Return: AL = FFh if installed
	    BX = 4144h ('AD')
	    CX = 2D44h ('-D')
	    DX = 4F53h ('OS')
Program: AD-DOS is the DOS version of the After Dark screen blanker for
	  MS Windows
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
SeeAlso: AX=C001h"AD-DOS",AX=C003h"AD-DOS",AX=C005h"AD-DOS",AX=C007h"AD-DOS"
SeeAlso: AX=C009h"AD-DOS",AX=C020h"AD-DOS",INT 14/AX=AA01h
Index:	screen saver;AD-DOS
                                                                                

INT 2F - DIMWIT - INSTALLATION CHECK                                            
	AX = C000h
Return: AL = FFh if installed
	    ES:DI -> signature string "DIMDOS" or "DIMWIN"
Program: DIMWIT is a freeware Windows-aware screen blanker by Larry Board
Range:	AH=C0h to AH=FFh, selected by scanning for first free multiplex number
SeeAlso: AX=C000h"AD-DOS",AX=C001h"DIMWIT"
Index:	screen saver;DIMWIT
                                                                                

INT 2F U - TSENGP.COM - INSTALLATION CHECK                                      
	AX = C000h
Return: AL = status
	    00h not installed, OK to install
	    FFh installed
		DS = segment of resident code
Program: TSENGP.COM is a 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. supplied by Compaq to fix an incompatibility
	  between some applications and Tseng ET4000-based video adapters
Range:	AH=C0h to AH=FFh, selected automatically
Note:	the installation check is completed by comparing the first eleven
	  bytes at DS:005Fh against 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 code (80h FCh 06h 74h 0Ah
	  80h FCh 07h 74h 05h EAh)