Dim strCookie, strTry

strCookie = Request.Cookies("MyCookie")  

strTry = Request.QueryString("Try")

If strCookie = "" Then     

' 检测否是设置了Cookie.

If strTry = "" Then   

         Response.Cookies("MyCookie") = "Set"

' 重定向到这一页面再试.

Response.Redirect(Request.ServerVariables("script_NAME")

& "?Try=Yes")

      Else       

     ' 如果没有开启Cookie.

 End If 

 Else

 ' 客户端正在接受Cookie.

Response.Cookies("MyCookie").Expires = "April 15, 2001"

End If