Re: Environment Variables

Thanks alot for your help.
I'll let you know later if I'm able to make your
program work out for me.  You've obviously
got alot of research into this ...
- Randy Howe


"Klas Engwall" <klas.engwall@[EMAIL PROTECTED]
> wrote in message 
news:4817cce7$0$6430$834e42db@[EMAIL PROTECTED]
> Randy,
>
>>Can you give me a hint as to how I would be able
>>to "walk the MCB chain"???
>
> I wrote a walker some years ago as an exercise. The only purpose was
> to build a list of running processes and their memory locations. It
> has no support for doing anything with the data stored at those
> locations. I have put it here <http://www.engwall.com/temp/mcb.zip>
> temporarily if you want to take a look at it. It requires nanfor.lib
> and cpmi.lib as well as ll.lib from my LFN Library or LanMan Library.
>
> Since you are interested in the environment of "your own" process,
> maybe you should rather go directly to examining the PSP of that
> process.
>
> As I said, this is an area that is more or less undocumented, and
> walking the MCB is quite far from a walk in the park <g>. The book
> Undocumented DOS by Andrew Schulman et al (Addison Wesley, 1990) and
> Ralf Brown's Interrupt List are probably the best sources for info.
> The book has a complete source code listing, several pages long, for
> an environment editor. You might want to check that out if you can
> find a copy.
>
> Regards,
> Klas
>
> -------
> klas dot engwall at engwall dot com
>
> http://www.engwall.com/clipper/
>
> The LFN Library for Clipper
> The LanMan Library for Clipper
> The NFPAT1A Timeslice release patch for the Nanforum Toolkit