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Internet Explorer 7 User Agent String
http://www.vistaarticles.com/articles/77/1/Internet-Explorer-7-User-Agent-String
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Published on 10/21/2006
 
To enable you to workaround any remaining sites that block access to Internet Explorer 7.

Internet Explorer 7 User Agent String

To enable you to workaround any remaining sites that block access to Internet Explorer 7, we developed the User Agent String Utility.  The utility comes in the form of a small executable that opens an IE7 instance that sends the IE6 user agent string.  It also provides a mechanism for you to report problem web sites to Microsoft so that we can follow up with the affected site owners.

Download:
http://www.microsoft.com/downloads/details.aspx?FamilyID=9517DB9C-3C0D-47FE-BD04-FAD82A9AAC9F&displaylang=en