In 1984, I wrote a water treatment program that will take the water components (TDS, Chlorides, P and M alkalinity, pH, etc.) from cooling water, boiler, chiller water or incoming make-up water and produce the cycles of concentration up to 20 levels and the most importantly the Ryznar Stability Index. I have downloaded the MSDOS 7.1 from SysChat but there are no directions as to how one would produce the boot disk. With the boot disk, I can type in my program for the first time since 1984 and use the program to help a friend in need. Can anyone help me?

Hi Please try this


1. How to make and use the MS-DOS 7.10 installation disk(s)?

Answer: To make the MS-DOS 7.10 installation disk(s) from the .IMG (floppy disk image), after unzipping the downloaded file (.ZIP), you should WRITE (not copy) the disk image (.IMG) into a floppy disk using a disk image program! A tool called MAKEBOOT is now included in the ZIP package so you can just type MAKEBOOT in the DOS prompt to make the boot disk directly. Or, you can use WinImage or similar to WRITE (Not just copy or extract files) it to a bootable floppy disk in the similar way. In addition, you may also emulate a floppy disk from the disk image (.IMG) in a virtual machine (e.g. Virtual PC and VMWare), and boot the system from this emulated floppy disk inside the virtual machine to start the installation directly.


2. How to start installing MS-DOS 7.10 when ready?

Answer: To start to install MS-DOS 7.10, you can just boot your system from MS-DOS 7.10 Installation Disk 1 or MS-DOS 7.10 Installation CD (because they are both bootable if you have made the disks/burnt the CD correctly), and then the installation will begin automatically soon.

Alternatively, you could boot your system from the hard drive (i.e. from Drive C which has any version of DOS installed already, or boot from any other MS-DOS 7.10 boot disk (not a MS-DOS 6.x boot disk or so in this case), and then go to Drive A: and type SETUP to start the MS-DOS 7.10 installation.

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Thank you two , who ever you are for the great suggestions. I will try each one in order and will reply again with results. The Boot dist is only secondary to getting DOS 7.10 on my hard drive first so I can start using it. Then, to facilitate writing my program over a few days, the boot disk will be most helpful to me.
Again, my sincere thanks.

I have made a CD which contains MSDOS 7.10 and a Boot. It will not start from startup of the computer when in residence in the CD drive, nor will it start Windows 2000. Any suggestions?