G'day all,

First of all, any "PKZIP version 3" (or later) for DOS is a Trojan
virus.  This one has been around for several years, and although most
reputable sites have long since dumped it, it continues to appear from
time to time.  Consult any virus info site for more details.

>From 1993 until a few months ago PKZIP/PKUNZIP 2.04g was the latest
version for DOS.  Now there is a PKZIP/PKUNZIP 2.50 for DOS available
from http://www.pkware.com and the various shareware archives.  You can
also get versions for Windows which have their own version numbering
scheme.

Changes from 2.04g to 2.50 include:
- Win 9x long file name support
- replacement or editing of ZIP comments when updating archives
- optional 4 digit years (part of its Y2k support)
- can use EMS memory
- handles up to 16383 files per archive
- some additional compression features which probably don't
  matter to most of us...

But if you're using PKZIP 2.50 with DR-DOS then be aware that their DPMI
implementations are not fully compatible. Either disable PKZIP's DPMI
useage with the ")" switch; or turn off DR-DOS DPMI first with the
"DPMI OFF" command.

The shareware 2.50 has the same limitations as the shareware 2.04g
(ie: almost none) and it will run on an IBM-XT.


cheers,
Fraser Farrell

http://www.dove.net.au/~fraserf/

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