http://blogs.technet.com/b/pki/archive/2011/08/18/internet-explorer-9-and-certificate-enrollment-using-certificate-authority-web-enrollment.aspxIf you run into an issue where you are unable to download or save certificates using Internet Explorer 9 (IE 9) and the Certificate Authority Web Enrollment service of a certification authority, you should be sure to disable the enhanced security optionen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/pki/archive/2011/08/18/internet-explorer-9-and-certificate-enrollment-using-certificate-authority-web-enrollment.aspx#3450208Wed, 31 Aug 2011 05:22:07 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3450208Ed Price - MSFT<p>Go TechNet Wiki Go!</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3450208" width="1" height="1">