Hi, I am booting up to 6.22 dos directly to play dos games. I currently have 587k conventional memory availabe. When I use the mem/c/p command it shows a driver "dblbuff" as using 3k memory conventional. Does anyone know what this is and can it be moved into upper memory to save the 3k for conventional memory? Thanks, Al

The "dblbuff" may not be needed if you only use IDE drives. Its for a problem with some older SCSI drives. There is no reason it could not be Loaded High if you have to use it.

I'm using MS-DOS 7.10,and have 630K free conventional memory.

How in the world do you get that much conventional memory? I have never even heard of that much before! Al

Look at here for some examples: http://www.kisser.net.au/tontodan/Dos95mem.html

Here, see my Start-up files for DOS7.1: --CONFIG.SYS: [menu] menuitem=BASIC, No EMS, no CD-ROM. menuitem=NORMAL, EMS, with CD-ROM. menuitem=CDROM, No EMS, with CD-ROM. menuitem=EMS, EMS, no CD-ROM. menudefault=NORMAL,2 menucolor=7,0 [BASIC] DOS=HIGH,UMB DEVICE=C:\DOS\DOS7.1\HIMEM.SYS DEVICE=C:\DOS\DOS7.1\EMM386.exe /NOEMS /NOVCPI DEVICEHIGH=C:\DOS\DOS7.1\DBLBUFF.SYS [NORMAL] DOS=HIGH,UMB DEVICE=C:\DOS\DOS7.1\HIMEM.SYS DEVICE=C:\DOS\DOS7.1\EMM386.exe RAM DEVICEHIGH=C:\DOS\DOS7.1\DBLBUFF.SYS DEVICEHIGH=C:\DOS\CDPRO\VIDE-CDD.SYS /D:MSCD001 [CDROM] DOS=HIGH,UMB DEVICE=C:\DOS\DOS7.1\HIMEM.SYS DEVICE=C:\DOS\DOS7.1\EMM386.exe /NOEMS /NOVCPI DEVICEHIGH=C:\DOS\DOS7.1\DBLBUFF.SYS DEVICEHIGH=C:\DOS\CDPRO\VIDE-CDD.SYS /D:MSCD001 [EMS] DOS=HIGH,UMB DEVICE=C:\DOS\DOS7.1\HIMEM.SYS DEVICE=C:\DOS\DOS7.1\EMM386.exe RAM DEVICEHIGH=C:\DOS\DOS7.1\DBLBUFF.SYS [COMMON] SHELL=C:\COMMAND.COM /P DEVICEHIGH=C:\DOS\DOS7.1\ANSI.SYS -- --AUTOEXEC.BAT: @echo off SET COMSPEC=C:\COMMAND.COM SET PATH=C:\DOS\DOS7.1;C:\DOS\DOS7.1\COMMAND;C:\DOS\TOOLS;C:\DOS\MOUSE;C:\VIEW;C:\DOS\QBASIC;C:\GAMES SET BLASTER=A220 I5 D1 T4 P330 MODE CON: LINES=50 LH C:\DOS\MOUSE\MOUSE IF %CONFIG% == NORMAL GOTO CDROM IF %CONFIG% == CDROM GOTO CDROM GOTO END :CDROM LH C:\DOS\DOS7.1\SMARTDRV LH C:\DOS\DOS7.1\MSCDEX /D:MSCD001 /V :END SET CMDLINE= -- I'm not sure exactly how much memory is free after that (it's something like 630 but I'm not going to restart my computer to find out, I'll reply and tell you later), but beleive me it's the most efficent little beast ever. Quick note that C:\DOS\DOS7.1\COMMAND dosen't exist, but becuase DOS thinks I have Win98 installed in C:\DOS\DOS7.1 (which is stated in msdos.sys), it'll want to add it to the path anyway. Oh here see MSDOS.SYS too: [Paths] HostWinBootDrv=C WinBootDir=C:\DOS\DOS7.1 WinDir=C:\DOS\DOS7.1 [Options] AutoScan=0 BootGUI=0 BootMulti=0 DoubleBuffer=1 Logo=0 Network=0 WinVer=4.10.1998 And by the way you do NOT need to keep those lines with xxxxxxxxx in them, just delete them.

Thank you all for all the help! Al