where are you checking? if you are using ASP.NET, tryRequest.Browser, whose type is System.Web.HttpBrowserCapabilitiesRequest.Browser.Browser will tell you whether it is IE or Netscapesee
http://www.dotnet101.com/articles/art006_browsercap.asp
http://www.dotnet101.com/articles/art006_browsercap.asp
如果不是iexplorer.exe就不是Pure IE.