Sunday, May 20, 2007

IE7 MS KB931768 Patching Problem

KB931768 Problem

While reading the ITsVista website, I saw mention of a unusual IE7 problem rearing its head.

KB931768 'navcancl' error crippling IE7 for some Vista users - Via ITsVISTA (post has error screenshots).

And then a follow up post: Microsoft responds to IE7 'navcancl' issue.

Seems that some users who installed the Microsoft patch update KB931768 are running into a problem.

When they open IE7 it opens for a second then closes and pops up a window requesting to save the file NAVCANCL from ieframe.dll.

Attempts to get IE7 working again by disabling elements doesn't help, but may work if the phishing filter is turned off.

Microsoft Responds

Turns out that this bad IE7 behavior occurs when the "temporary internet files" folder is moved to a custom location and IE7 does not have sufficient rights to access the new folder location.

To fix, try one of these workarounds:

  1. Reset the Temporary Internet Files location back to the default directory, or
  2. Change the permissions on the custom directory to match those on the default Temporary Internet Files directory.

Specific How-To details on these workarounds at Microsoft KB937409.

IEBlog : Follow Up to Internet Explorer May 2007 Security Update

The Microsoft Security Response Center (MSRC) : Update to KB Article 931768

MS07-027: Cumulative Security Update for Internet Explorer

The "File Download – Security Warning" dialog box opens when you try to open Internet Explorer 7

Probably not something most folks would ever see.

But likely to be very aggravating for those that do.


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