Date: Wed, 14 Jun 2000 08:09:24 -700
From: Walter Scott <[EMAIL PROTECTED]>
Subject: Re: Preliminary Evaluation of Net-Tamer Version 1.12.0
David:
I am surprised -- although a comparison of the 3-27-2000 and
6-12-2000 software certainly teaches me the validity of your
statement that nothing has changed between the two. I guess my
observations are partly due to incorrect perception and partly due to
a lack of careful comparison between the two packages.
As for the matter of DJPEG.EXE: I've been using the version of that
software dated 05-08-97 all along. I've had and been using a copy of
this software ever since you distributed it some years ago in
Net-Tamer version 1.09 or 1.10. (can't remember exactly which one) I
have been able to view .JPG files in previous versions of Net-Tamer
whereas I've not been able to view those same files in version 1.11.2
or 1.12. I've previously assumed the problem had something to do
with Net-Tamer itself in terms of whether the headers I quoted for
you are or are not stripped from .JPG files. I now believe I've been
wrongly assuming the change in versions of Net-Tamer brought on the
problem rather than the coincidence of certain websites upgrading
their servers at about the same time version 1.11.2 of Net-Tamer was
released. Further complicating the matter is that I've been surfing
some websites still using old server software/hardware.
Unfortunately, I have NOT been carefully comparing performance when
surfing those sites in different versions of Net-Tamer. From my less
than thorough experience, the older versions of Net-Tamer seemed to
work while the newer versions of Net-Tamer seemed not to work for me
on OTHER websites. In regard to those that worked for me in older
versions of Net-Tamer, I refer to the USGS (United States Geological
Survey) as an example. Try
http://wwwneic.cr.usgs.gov/neis/bulletin/bulletin.html
and select a listed earthquake. This will take you to a page that
contains 2 or 3 different maps. Those maps are .JPG files. If you
look at them after they've been downloaded to your machine, you'll
find there are no server headers in those files. Separate from
Net-Tamer and when I attempt to run DJPEG.EXE as a standalone against
a JPEG that has server headers in it such as I've quoted to you,
DJPEG issues the following error message:
"Not a JPEG file: starts with 0x48 0x54"
No .GIF equivalent is produced.
If I carefully edit out header information with a binary editor and
then run DJPEG.EXE against the same file, DJPEG.EXE properly
decompresses the file to a .GIF equivalent.
Moving on to the problem of Net-Tamer not being able to parse certain
websites -- CNN's in particular -- can you tell if this indeed has
something to do with Net-Tamer not being able to navigate around HTML
calls to javascript? Why would the XT/286 implementation of version
1.10 and every implementation of version 1.08 be able to parse a CNN
webpage while no implementation of version 1.11.2 or 1.12 will
successfully parse a CNN webpage? Thanks for any information you can
provide.
Walter Scott
In Message <[EMAIL PROTECTED]>, David
Colston <[EMAIL PROTECTED]> had the following to say on Wed, 14
Jun 2000 03:54:36 +0400:
DC>Headers are one every file downloaded. It should display correctly, but I
DC>will check this. It might surprise you to know that there have been 0
DC>chenges in the program since the beta release. The most likely cause for
DC>the changes you saw are in the fact that the beta did not contain all the
DC>auxillary programs (DJPEG and others). I'll work on the web stuff for the
DC>next release.
<><> News & Views, 24 hours a day, 7 days a week, are the Net <><>
NTReader v0.27a(O)/Beta (Registered) in conjunction with Net-Tamer.
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