About the Internet Explorer 7 User Agent

*    On Windows XP SP2, IE7 will send the following User-Agent header: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)
*    On Windows 2003 Server, IE7 will send the following User-Agent header: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2)
*    On Windows Vista, IE7 will send the following User-Agent header: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)