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Christian InTech Articles - Software
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Internet in Russia and Ukraine - Part 2. Major RuNet and UaNet Search Engines and Directories
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Link Building Software
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The Mafia & Spyware The deluge of spyware festering on consumer and corporate PCs will help to spark a boom in spending on security Latest News about Security software, a new report from Framingham, Massachusetts-based IDC predicts. Anti-spyware...
Wealth for Free
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Why Build Your Own Gaming Computer?
The best way to get the gaming computer that you want, that will provide optimum performance is to build your own computer. If you think you do not have the technical knowledge or are not capable of building a computer you are wrong. I'm pretty...
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INSTALLING NEW SOFTWARE IS RISKY
When you get a new computer, you'll want to install your
favorite software and get everything running just the way you
want it to. Then you'll likely add some new stuff, possibly
over a period of the next couple of months. Beyond this point,
hesitate to add more. Here's why.
Shared Library Files
Many software firms use DLL (Dynamic Linked Libraries) in
developing programs. They are kind of like a tool box from which
the programmer chooses the one needed. Even though the program
being created may need only a couple of "tools" from this DLL,
using them saves programming time, which is expensive. This is
a safe and efficient procedure, for the code in the library is
well tested and will run reliably.
Other software developers use the same library. Some DLLs
are used in many programs. For you, this means less disk space
required on your system, for only one copy of the library is
needed.
You also benefit in that you pay less for the software and
it runs reliably. It's hard to see anything negative in such
a procedure. Or in software using any other shared procedures.
For example, you might have several programs that use a common
routine that is part of connecting your system to the Web over
a phone line.
All About Versions
Most companies developing software will use the latest
version of a DLL. It contains changes and enhancements over
earlier ones. Thus differences exist between them.
This is true of different versions of other software. The
latest version of IE (Internet Explorer), for example, contains
changes and enhancements over the previous one. Migrating from
the current version to the latest, can mean installing what
amounts to almost a new program.
The Catch In Upgrading Or Installing Software
When you install an upgrade or a new piece of software, any
DLLs used will also be installed. Windows makes the rules in
this. An older version of a DLL is not allowed to overwrite a
later one. But a newer one IS allowed to overwrite an older one.
Here's how things can go wrong.
Suppose you have a program call SPLAT, another called SPRANG,
and a third call SPUNK. Suppose they all use a DLL called STUFF.
If you upgrade SPUNK, and the upgrade includes a new version of
STUFF, then quite suddenly SPLAT and SPRANG may not run properly.
That is, they are now forced to use a version of STUFF the
programmer had not planed for.
While it's quite likely a new DLL will run just fine with
older programs, it may not. If your older programs won't run
well enough to suit your needs, you may be forced to upgrade to
later versions.
Unfortunately, this may not solve the problem
if the older DLL is still in use.
A Horror Story
I personally do not install upgrades unless literally
forced to do so. (And I do not install new software except
when absolutely required.) Some time back while using an
earlier version of IE, I was forced to upgrade. The results
were disastrous.
I first tried upgrading IE to the latest version, 5.5.
But I never could get it to run. I dropped back to version
5.1, which ran, but unpredictably.
My system became unstable. Lots of memory collisions (GPFs)
that crashed some program maybe two dozen times a day. Even IE
was not running properly and became the program most likely to
crash. Other stuff was happening that required restarting the
computer 5-6 times each day. If you have been there, you know
how much this slows you down.
Further, several of the programs I use routinely, such as
Eudora, began failing with troubling regularity. And two would
no longer run at all.
My only option was to retire a perfectly good computer less
than two years old and buy a new one. Then install all the
latest software all at once. This meant chucking some stuff
I liked, then hunting up replacements. Both time consuming
and tedious.
So What Went Wrong?
I have no idea, really. But the most likely cause of this
failure was in overwriting one or more DLLs with later versions
required by IE that my other software could not handle. That is,
my other programs were designed to run on the previous versions,
not the latest.
What This Means To You
If you are a casual user of your computer, and load up
something new about once a month, the chances are you will never
face the problem described above. The worst that is likely to
happen is that as new software is added, older programs do not
run in quite the same way.
If you are a serious computer user, and depend upon one as
an integral part of your business, take the position you won't
upgrade or install new software unless you are absolutely forced
to do so.
My tale is not an isolated case. All heavy users of
contemporary PCs have had this experience, even if not quite
so severe.
If you need a program, by all means install it and go.
But be hesitant in playing the game, "I think I'll try this."
Why risk it?
About the Author
Bob McElwain
Want to build a winning site? Improve one you already
have? Fix one that's busted? Get ANSWERS. Subscribe
to "STAT News" now! mailto:join-stat@lyris.dundee.net
Web marketing and consulting since 1993
Site:
Phone: 209-742-6349
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