From: "Glenn Meadows" 

We have a DOS based database Royalties system that we still use, and it
really depends on the screen that the users have open, and which part of
the program they are in, how the NTDVM's hog the systems.  We run Terminal
Services to "operate" this app to keep the huge number of files
needed open from slamming the network now.  I can watch the task manager on
the server, and almost tell who's doing what of the 4 people who access
this system. The CPU usage will bounce at 100% from user to user.  If any
are calculating royalties, especially the 300 page Harry Fox Agency report
at the end of a quarter, everyone else slows to a crawl till that
calculation is done (about 15 minutes on a PII 233).  The company who now
owns this program, is JUST finishing their Windows version, but the upgrade
is in the mid 5 figures. It's a major app used by a large percentage in the
publishing industry (music) and record companies to track/calculate royalty
payments with all the different interdepancancies and subtle differences in
each contract.



--
Glenn M.


"John Beckett"  wrote
in message news:3ef82ea8.11895574{at}216.144.1.254...
> Ellen K.  wrote in message
> news::
> > 1.  If you open a DOS program, the CPU zooms up to 100% (ergo slowing
> > everything else down) until you close it.    I think this one is pretty
> > well known.   You can see it for yourself by opening edit from the
> > command line.
>
> Opening Edit would not do this. There are *some* programs that behave as
> Antti explained, but in general DOS programs do not have this effect under
> NT/W2k/XP.
>
> A more likely explanation is that you had the IPX network procotol to talk
> to some Netware servers, together with the Client Service for Netware. For
> some incredibly stupid reason, that really can foul up 16-bit apps under
> NT/W2k.
>
> Actually I'm changing my mind because I just read your other post about
> this, and I see the app was Clipper. I have no knowledge of Clipper
> internals, but it is quite possible that it is one of the few apps that
> the operating system has trouble taming in the way that Tony mentioned.
>
> John

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