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- Newsgroups: comp.os.os2.misc
- Path: sparky!uunet!elroy.jpl.nasa.gov!usc!zaphod.mps.ohio-state.edu!cs.utexas.edu!uwm.edu!linac!att!cbnews!shurr
- From: shurr@cbnews.cb.att.com (larry.a.shurr)
- Subject: Re: Question about OS/2 emulated DOS, how it works???
- Organization: AT&T Bell Laboratories, Columbus, OH
- Date: Fri, 18 Dec 1992 19:06:27 GMT
- Message-ID: <1992Dec18.190627.12697@cbnews.cb.att.com>
- References: <28468@oasys.dt.navy.mil> <1992Dec14.074127.16842@netcom.com>
- Lines: 36
-
- In article <1992Dec14.074127.16842@netcom.com> samiam@netcom.com (Scott Moore) writes:
- >jwhite@oasys.dt.navy.mil (Joseph White) writes:
- >>I was under the impression that when you exited from an OS/2 emulated
- >>DOS shell, that OS/2 cleared up the memory that was used, and made it
- >>available for an other use. Is that right?
-
- >As long as the VDM (virtual dos machine) runs, it will behave just as real dos
- >will, ie, you will get the hole effect from runnning a TSR. But once the VDM
- >closes (as in the dos screen or window colapses and no longer shows up on the
- >task list), it is truly gone, including any tsrs.
-
- Hmmm... There's more to it than meets the eye. Logically, I would have
- agreed with you, but I have found that in cases where I exit from a VDM
- and later start another, I frequently get a complaint from nnansi.com
- that there's already a copy of nnansi.com loaded! As if that wasn't
- enough, it doesn't do it every time, just most of the time.
-
- Now, I don't, offhand, see how anything from one VDM can survive termi-
- nation of the VDM and appear in another, new VDM session, but there is
- at least some indication that nnansi.com is still around between sessions.
-
- I suppose that I ought to try using nnansi.sys and loading it using the
- drivers option in the DOS settings. I'll try it and see how well it
- works. If it works without complaining, it still won't explain how
- loading nnansi.com in one VDM affects another, later VDM.
-
- BTW: This only happens when terminating a VDM and starting a new one. I
- can start several concurrent VDM's without any apparent conflict and no
- error messages about nnansi.com already loaded.
-
- Larry
- --
- Larry A. Shurr (las@cbnmva.att.com) speaking only for myself.
- Norman, listen carefully. I am lying. Are you sure your circuits are
- registering? Your ears are green. Logic is a little bird singing in a
- meadow. Logic is a wreath of pretty flowers which smell bad! - Mr. Spock
-