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Considering MS-DOG (inside NTVDM) (Users)

posted by Dennis, 02.08.2011, 15:48

> > How modern? The first problem you'll encounter is whether a 64 bit system
> > will run a 16 bit OS. I've seen discussions elsewhere from folks losing
> > legacy MS-DOS applications when moving to a 64 bit box because they don't
> > run under Win7 unless you use a virtual machine setup.
>
> Very wrong. Ability to run a 16-bit OS has nothing to do with Win7
> NTVDM issues. It has to do with CPU ability to run 16-bit code (seems still
> present) and BIOS (expecially INT $10 VGA and INT $13 hard disk support).
Not wrong if what you want to do is run the 16 bit app in a 64 bit flavor of Windows. The issue isn't whether the CPU will run the code (and 64 bit Intel architecture CPUs should still be able to do it). It's whether the host OS (Win7 in this case) supports it. The answer is "Not unless you use a virtual machine."

> > Dual-booting isn't all that complicated, depending upon what you're
> > booting. The question is whether it's the best way to accomplish
> > what you want to do. In the case of running the odd MS-DOS
> > application, I'd say no - go with one or another VM setup.
>
> Good. For me - as I want to have DOS - "VM" is not a choice.
If a VM setup lets you have a fully functional DOS installation, I'm not sure why it's not a choice. But if you'd rather dual boot to a flavor of DOS, enjoy.
______
Dennis

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