There are two problems that I can see here:

Firstly, you need to set up environmental variables in Windows, not in autoexec.bat, 
so DOS programs will require the autoexec.bat entries added manually in Windows.

Secondly, Windows 2000 denies you direct access to hardware that DOS based Windows 
allows.

Are you having the problems compiling or compiling/running? If the problems are in 
running, then I would suggest that the latter is at fault, but if the problems are 
in compliling, it may be that the compiler just doesn't know where to find libraries, 
etc. and thus it is the former.





On Friday, January 11, 2002 at 8:03 pm, Andrew wrote:
>I have a question about My 
>extra-cool DOS game won't run under Windows:

>
>
>I run Windows 2000 Professional, but have several older DOS programs such as a Pascal 
>compiler and a few games such as Heretic, Hexen, Duke3D, Doom, etc.  

>These games refuse to run under Windows 2000 at all, instead (in the case of games) 
>locking up while going through the initialization routines (eg. Doom's scrolling 
>periods during init).  In the case of my compiler, any attempts to run the compiled 
>programs trigger Runtime Error 200 - Division by Zero, even if they were compiled 
>before I changed operating systems. 

>Video is fine, as the compiler has no problems with it, and the games all use low-res 
>modes or VESA drivers handled by the card itself.  They all ran under Windows 98 
>(exact same computer and parts).  
>
 

>Is there any sort of work-around or fix I can use, seems to how I've never seen 
an 
>option for a startup disk in Windows 2000, and I doubt Creative makes SoundBlaster 
>Live drivers for DOS.  I'm planning on purchasing a new hard drive in the next few 
>weeks, and I'll probably partition off a space for Windows 98 and the older programs, 
>but there's got to be a better way than that.

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