Windows 7 64-bit Internet Explorer 9 Crash(APPCRASH jscript9.dll)

I have a web application that uses ASP.Net MVC and Ext JS 3.1 and I get the below error consistently for a page where I try to get the JSON value from a store and IE 9 crashes. The page works fine on other browsers and IE 8/7.

Problem signature:
  Problem Event Name:   APPCRASH
  Application Name: iexplore.exe
  Application Version:  9.0.8112.16421
  Application Timestamp:    4d76255d
  Fault Module Name:    jscript9.dll
  Fault Module Version: 9.0.8112.16434
  Fault Module Timestamp:   4e28e66c
  Exception Code:   c0000005
  Exception Offset: 0006c8a2
  OS Version:   6.1.7601.2.1.0.256.4
  Locale ID:    1033
  Additional Information 1: 0a9e
  Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
  Additional Information 3: 0a9e
  Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

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On 64 bit machines this happens after a windows update, which I didn't bothered to find out which one. But after re-registering the DLL (as below) this problem can be resolved.

Open command prompt as an administrator and type below
C:\> regsvr32 jscript9.dll

This should resolve your problem.

To resolve this problem go to the Debug tab in your project settings and make sure the "Enable unmanaged code debugging" setting is turned on

I encountered this same issue using Google Maps in a WebBrowser control.

I know I'm resurrecting an old question here, but hopefully it will help anyone coming across this page in the future.

Microsoft provided hot-fix for IE 9 on 13th Nov 2012. so, this issue will not be there with IE version of - 9.0.8112.16455 OR above.