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New Ahh - thanks.
Tradeoffs understood (..so long as that ap isn't running with another ap which wants a different version.) {sob}

So then (were Doze smarter designed) one might envision:
every executable having a descriptive filename plus its version-determined [unique subname] by which it is IDed in memory. You'd have to get around dupe filenames in directories (or as in the olden days - keep those Only in the ap's launch directory?) but there would be no name confusion, on launch. Ah But - then there's keeping the PATH up-to-date and never Too-long :-/

Jeez Billy, you narcissistic amateur. Not 'The Smartest Guys in the Room', though new hires are told that, I've oft heard. (I realize that *nix can load whatever new/old versions of libs - available simultaneously, as needed. Smart college guys.)

One can only wonder how the moz folk (have, apparently and gradually) solved this particular version roulette which I've watched for some years..
Dear esteemed Mozilla programmer, YPB: HTF did you Do this?

New Side by side on my piano keyboard oh lord why don't we...
Windows XP and later have something called Side-by-Side Assemblies:


Starting with Windows XP, multiple versions of side-by-side assemblies can be used by applications running at the same time. Manifests, and the assembly version number, are used by the loader to determine the correct binding of assembly versions to applications.
...
When an application calls to load the DLL, the side-by-side manager determines whether the application has a version dependence described in a manifest. If there is no relevant manifest, the system loads the default version of the assembly.


-- [link|http://msdn2.microsoft.com/en-us/library/aa376307.aspx|http://msdn2.microso...ary/aa376307.aspx]
--
Chris Altmann
Expand Edited by altmann Aug. 7, 2007, 08:21:46 PM EDT
New Interesting. Of course, being Microsoft, they break it...
[link|http://et.cairene.net/2006/05/03/behavior-change-in-server-2003-sidebyside/|Behavior change in Server 2003 SideBySide?].

DLLs did make some sense in saving memory and load times on slow, memory-constrained machines. But once MS's APIs got ungodly complex, they tied applications into the OS, etc., etc., then it was guaranteed to break. This [link|http://www.geek-central.gen.nz/peeves/shared_libs_harmful.html|rant] from 1998 makes the point pretty well.

Like many of these things, it seems to be [link|http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PTXT&s1=5708811.PN.&OS=PN/5708811&RS=PN/5708811|IBM's fault]...

Cheers,
Scott.
New Different goal
DLLs where designed for the era when disk space and memory where very limited. The idea was you only ever needed one foo.dll on a system and would ever only load one foo.dll into memory. If another application called foo.dll, Windows just passed a reference to the already loaded copy.

At the time it was a sensible solution, though poorly implemented. Microsoft made two key mistakes from the start, failing to clearly separate system and application DLLs, and not providing a good way of uniquely naming or providing version numbers for DLLs.

What makes it so typical of Microsoft is that they where copying something from Unix, and managed to mess it up. Shared Libraries under Unix are not what I would call elegant. But the system does work and covers all of the major issues.

Jay
     Logistics query re known 'bad' OS components - - (Ashton) - (8)
         programming is the art of linking crap libraries - (boxley) - (1)
             So then - - (Ashton)
         It's more of an art than a science. - (static)
         Re: Logistics query re known 'bad' OS components - - (JayMehaffey) - (4)
             Ahh - thanks. - (Ashton) - (3)
                 Side by side on my piano keyboard oh lord why don't we... - (altmann) - (1)
                     Interesting. Of course, being Microsoft, they break it... - (Another Scott)
                 Different goal - (JayMehaffey)

Please... I can't take this kind of stimulation! I got Disney tunes running all through my head at just the thought of it.
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