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- Path: sparky!uunet!noc.near.net!hri.com!spool.mu.edu!torn!watserv2.uwaterloo.ca!watserv1!schepers
- From: schepers@watserv1.uwaterloo.ca (Peter Schepers)
- Newsgroups: comp.compression
- Subject: PKZIP 2.04c
- Message-ID: <C0G7o7.EwB@watserv1.uwaterloo.ca>
- Date: 6 Jan 93 20:02:30 GMT
- Organization: University of Waterloo
- Lines: 56
-
- Newsgroups: comp.compression
- Subject: PKZIP 2.04c
- Summary:
- Expires:
- Sender:
- Followup-To:
- Distribution:
- Organization: University of Waterloo
- Keywords:
-
- This is actually a response to a posting by Mr. Nico De Vries...
-
-
- I have been toying with PKZIP running under OS/2 2.0 GA/SP, and have
- experienced some interesting problems as well. Up until a few minutes ago,
- I could not get it to work reliably. So I went ahead and screwed around
- with the DOS settings, to see what could possibly happen.
-
- One of the interesting things is PKZIP detects XMS, EMS, DPMI, micro type
- all automatically. So these are the settings I decided to change.
-
- First off, don't try to run PKZIP under OS/2 with no XMS set. I found this
- was a sure way to generate a program fault (i.e This Program Encountered
- an Error message). At this point the session is dead. When set for
- 64k, the whole system trapped with a TRAP 6. It still seemed to cause
- problems. So I left it at 1 Mb. So far so good.
-
- As soon as I had done this, I switched the Dos FS session to the
- background, and promptly PKZIP generated an error again. Close down the
- session again.
-
- OK. Set XMS to 1Mb. Set EMS to 1Mb. Leave DPMI alone. Try it again in the
- background. Crash again.
-
- OK. Set XMS to 1Mb. Set EMS to 1 Mb. Turn DPMI off. Now it works? Go
- figure.
-
- Toying with the EMS settings by the way seems to make no difference.
-
- So the settings seem to be.... DPMI off, EMS doesn't matter, XMS to 1 Mb.
- This seems to work.
-
- Can someone else verify my findings?
-
-
- P.S. Right now in the background, I am compressing the whole WATCOM C
- directory (all 6 Megs of it.) So far so good... I just checked and it
- worked nicely.
-
-
-
-
- From the workbench/universe of: : "Help! Help! I'm being
- schepers@watserv1.uwaterloo.ca : repressed!" - Monty Python
- ------------------------------------------------------------------------------
- Peter Schepers University of Waterloo Waterloo Ontario Canada.
-