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What does IE9 return for new ActiveXObject("Msxml2.DOMDocument.4.0");?

Answered What does IE9 return for new ActiveXObject("Msxml2.DOMDocument.4.0");?

  • Monday, November 19, 2012 7:17 AM
     
     
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    Can anyone tell me why the following javascript does not cause an error in IE9 Win7 64bit?

    var objXML = new ActiveXObject("Msxml2.DOMDocument.4.0");

    Does IE9 fall back to msxml3 when this is invoked or does it use msxml6 in some kind of backward compatible mode?

    I do not have msxml4 installed except the one in the SysWow64 directory which I'm pretty sure is not used by IE9.

    Thanks in advance for any help.

     

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  • Monday, November 19, 2012 7:41 PM
     
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    Ok, I have the answer. *egg on face*

    Unless you run 'Internet Explorer (64-bit)' specifically on Windows, you are running the 32-bit version and therefore have access to msxml4 from the SysWOW64 directory.

    The Javascript above breaks on IE 64-bit and msxml4 is not 64-bit compatible.

    If you want to know what msxml version your browser is using follow these direction

    support.microsoft.com/kb/296647?wa=wsignin1.0



    • Edited by WilliamBoyd Monday, November 19, 2012 7:42 PM
    • Marked As Answer by WilliamBoyd Tuesday, November 20, 2012 12:37 AM
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  • Tuesday, November 20, 2012 2:36 AM
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    Hi,


    Thanks for sharing. We really appreciate your time and efforts. Hope your experience will help other community members facing similar problems.


    Regards,

    Vincent Wang

    TechNet Community Support