[Pdx-pm] Fwd: SPUG: IIS on Windows 7 caching code differently than previous version

[Michael R. Wolf]

I originally posted this to SPUG but got no reply.  Since my buddy is in PDX land, perhaps any Perl-ish folks there may understand the IIS/Perl relationship enough to help.  It's much older technology than you bantered around last week at your meeting, but perhaps there's a crufty cubby hole that's got an answer to share.

Summary:  His new Windows machine is caching code that he *wants* to be recompiled at each invocation.  How can he dumb-down the IIS?

Thanks,
Michael

Begin forwarded message:

> From: "Michael R. Wolf" <MichaelRWolf at att.net>
> Subject: SPUG: IIS on Windows 7 caching code differently than previous version
> Date: April 19, 2012 12:02:48 PM PDT
> To: "Spug-List at Pm.Org" <spug-list at pm.org>
> 
> A buddy called me with a Perl question, but we reframed it as an IIS question.
> 
> He's used to using an undeclared, uninitialized global variable (yeah, he knows, but it's old code and he doesn't want to change it) for procedural (that is, not even any objects to maintain state) that gets incremented a couple of times with each call from a web page.  Different web pages call the same code, and they used to get an uninitialized value.  Now (with his recent installation of Windows 7), they remember the value from previous, unrelated web calls as though it's just one big shared global variable across all calls.
> 
> I don't know IIS, but vaguely remember that Apache has a way to compile code once and keep it in core for later use.  Apparently, until this recent install, he was getting behavior that recompiled the code on every call, and therefore started out the counter at undef (acting like 0).  Although it's more "clean" (for some definitions of clean) to do it differently, the sites he has are low volume, and not worth the effort to rewrite and re-debug the behavior across all the users of this module of code (not necessarily a capital-M Module).
> 
> A few questions:
> 1. How to turn off code caching in IIS?
> 2. What search term to use to learn about #1?
> 3. What's the corresponding term in Apache to bootstrap an IIS search?
> 4. If the described behavior seems to fit another diagnosis, what would that be?
> 
> Thanks,
> Michael
> 
> -- 
> Michael R. Wolf
>    All mammals learn by playing!
>        MichaelRWolf at att.net
> 
> 
> 
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-- 
Michael R. Wolf
    All mammals learn by playing!
        MichaelRWolf at att.net