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iexplorer.exe (v6 & v7) crashes in unknown module, with inconsistent causes even with no add-ons

Starting last week several of my users have started experiencing crashes in iexplore.exe.  This happens at different times for different users, and doesn't affect all users, nor did it start happening at the same time.

Some symptoms (not common to all instances):
* ModName: unknown in all cases
* home-page loads okay, any subsequent page crashes
* all pages okay apart from one
* everything fine unless a new tab opened
* everything fine unless [alt]+[tab] to another app (I think whenever IE looses focus)
* same user can usually use another computer okay (roaming profiles in use)

All hardware is the same, built using the same image, and patched from the same WSUS source.  Operating System  is Windows XP SP2.

Attempted fixes:
* Applied all fixes from Windows Update (there were only a few seemingly unrelated ones)
* Scanned using HijackThis (results available, but very little listed and analysis sites flagged nothing)
* Scanned using AdAware (nothing found apart from a stack of tracking cookies)
* Upgraded user to IE7
* Used IE7's "reset to defaults" feature
* Started IE7 in safe (no add-ons) mode

The final one seems to work, but I can't see any addons in there that everybody else hasn't got, and the users don't seem to have permissions to disable addons so I've not been able to follow some of the steps in KB936213.
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IntellectUK
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IntellectUK
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1 Solution
 
jamesaskhamCommented:
Have you tried using the internet options, advanced tab, and unchecking "enable 3rd party browser extensions"?
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IntellectUKAuthor Commented:
Interesting.  I forgot about that one.  I tried that and it seemed to make no difference, but when I looked into the add-on list it still seemed to have loaded some non-MS add-ons, such as Quicktime, RealPlayer, AdobeReader and a bunch of Java ones (I had restarted IE too).  I disabled all these individually, just leaving the MS ones active, and it seems (for now) to have fixed it.

When the user has time I'll try enabling them one-by-one to find out which is causing the problem.  The PC's have been in service for some time, so there were about 8 different Java versions on there, perhaps it was a conflict in there.
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jamesaskhamCommented:
Brilliant. Let me know how it goes and if you need anymore help.
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IntellectUKAuthor Commented:
Just a mini-update, this is still fixing the issue for some othere people, so now it's just a matter of pinning down which add-on it is.
I have noticed that "Java Plug-in 1.6.0_03" is listed several times, and doesn't seem to be sorting correctly when disabling them (they usually go into their own section at the top when disabled) so I'm guessing it's these.  I'll try and get one of these people to re-enable one to see what happens.
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jamesaskhamCommented:
Sounds like a plan.

Let me know how it goes.

Thanks.
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IntellectUKAuthor Commented:
I found a user's machine that I could play on for a bit, and by disabling all add-ons, and then enabling them one-by-one, I identified the culprit.  Whenver I enable the "RealPlayer G2 Control" it all goes wrong.

It does this regardless of wether or not I have the "enable 3rd party controls" ticked.
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jamesaskhamCommented:
Well done, just disable the control (assuming you don't need it) and that should solve your problem.

Thanks.
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