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Recommendations for Porting a 16 bit DOS Application (DOSX)

posted by Japheth(R) Homepage, Germany (South), 16.10.2007, 08:10

> I was thinking that I could port to MS Visual C 6.0 (already licensed)
> with the least amount of rewrite. I'll need to investigate the open
> Watcom compilers. It sounds like that is the preferred approach these
> days. I didn't know that Vista no longer supports the DOS Box emulation.
> Have they eliminated NTVDM altogether in this latest version? I've been
> running the application under Virtual PC 2007 for my development and it's
> alot slower; most notably, the GUI refresh is very slow. If this is the
> case, I'll probably abort the port.

besides the full port to Win32 there is the option to write a VDD (a Win32 dll) which does the GUI stuff and which is loaded by your DOS application. The VDD has no restrictions concerning graphics, but the implementation of the communication DOS to VDD will require some ASM knowledge.

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MS-DOS forever!

 

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