crazii wrote on 2026-06-28, 06:23:

It seems a IO problem. e.g. INT13h error causing command.com not loaded properly. You may want to comment out your lines in CONF […]
Show full quote

shawnmos wrote on 2026-06-26, 19:00:

I am getting "The following file is missing or corrupted: Command.com" after loading JemmEx. I am using an Inspiron 2200 laptop with Intel 915 chipset and AC'97 audio. Any ideas?

It seems a IO problem. e.g. INT13h error causing command.com not loaded properly.
You may want to comment out your lines in CONFIG.SYS, e.g. add REM before DEVICE=JEMMEX.EXE and other lines to find out which device driver is causing the problem.
Also disabling option ROMs and USB legacy supports in BIOS settings may help.

I assume you don't use VDPMI but JEMMEX, because the two programs are not compatible. So another options is try VDPMI, but no guarantee that it will work, I will post the link in the OP.

I get the error when loading JEMMEX regardless what else is loading in config.sys. I decided to give QEMM v9 a try as well but it just hangs. When I try to do the memory optimization feature of QEMM I end up getting the same command.com error. I tried using the JEMMEX /load command after booting and after it loads I get a drive not ready or general failure reading drive c (I can't remember which exactly). I'll take a look at the BIOS too but since it's a base model Dell I don't think there was much in the way of settings. SBEMU does work without JEMMEX and real mode, but I was trying to get Keen 4 working and I think it needs real mode.

Thanks for your help. I'll give the VDPMI version a try next.

shawnmos wrote on 2026-07-02, 21:43:

crazii wrote on 2026-06-28, 06:23:

It seems a IO problem. e.g. INT13h error causing command.com not loaded properly. You may want to comment out your lines in CONF […]
Show full quote

shawnmos wrote on 2026-06-26, 19:00:

I am getting "The following file is missing or corrupted: Command.com" after loading JemmEx. I am using an Inspiron 2200 laptop with Intel 915 chipset and AC'97 audio. Any ideas?

It seems a IO problem. e.g. INT13h error causing command.com not loaded properly.
You may want to comment out your lines in CONFIG.SYS, e.g. add REM before DEVICE=JEMMEX.EXE and other lines to find out which device driver is causing the problem.
Also disabling option ROMs and USB legacy supports in BIOS settings may help.

I assume you don't use VDPMI but JEMMEX, because the two programs are not compatible. So another options is try VDPMI, but no guarantee that it will work, I will post the link in the OP.

I get the error when loading JEMMEX regardless what else is loading in config.sys. I decided to give QEMM v9 a try as well but it just hangs. When I try to do the memory optimization feature of QEMM I end up getting the same command.com error. I tried using the JEMMEX /load command after booting and after it loads I get a drive not ready or general failure reading drive c (I can't remember which exactly). I'll take a look at the BIOS too but since it's a base model Dell I don't think there was much in the way of settings. SBEMU does work without JEMMEX and real mode, but I was trying to get Keen 4 working and I think it needs real mode.

Thanks for your help. I'll give the VDPMI version a try next.

I am getting this crash unfortunately