Request.ServerVariables参数用来识别登录客户端的

一，获得网页来访者IP地址的代码是：
您的IP是: <% =Request.ServerVariables("REMOTE_ADDR") %>
二，获得操作系统版本的代码是：
<% response.Write operationsystem & "<br>" & browser
function operationsystem() '操作系统版本 agent = Request.ServerVariables("HTTP_USER_AGENT") if Instr(agent,"NT 5.2")>0 then SystemVer="Windows Server 2003" elseif Instr(agent,"NT 5.1")>0 then SystemVer="Windows XP" elseif Instr(agent,"NT 5")>0 then
SystemVer="Windows 2000" elseif Instr(agent,"NT 4")>0 then
SystemVer="Windows NT4" elseif Instr(agent,"4.9")>0 then
SystemVer="Windows ME" elseif Instr(agent,"98")>0 then
SystemVer="Windows 98" elseif Instr(agent,"95")>0 then
SystemVer="Windows 95"
else SystemVer="未知" end if
operationsystem="您的操作系统是: " & SystemVer end function %>

三，获得浏览器版本的代码是：
<% function browser() '浏览器版本 agent = Request.ServerVariables("HTTP_USER_AGENT") if Instr(agent,"MSIE 6.0")>0 then browserVer="Internet Explorer 6.0" elseif Instr(agent,"MSIE 5.5")>0 then browserVer="Internet Explorer 5.5" elseif Instr(agent,"MSIE 5.01")>0 then browserVer="Internet Explorer 5.01"
elseif Instr(agent,"MSIE 5.0")>0 then browserVer="Internet Explorer 5.00" elseif Instr(agent,"MSIE 4.0")>0 then browserVer="Internet Explorer 4.0" else browserVer="未知" end if browser="您的浏览器版本: " & browserVer if Instr(agent,"TencentTraveler")>0 then '检查是否正在使用腾讯TT
browser=browser&" ｜目前正使用TencentTraveler" end if end function %>

Deom:

protected void Page_Load(object sender, EventArgs e)
        {
            //string info = "客户端IP：" + Page.Request.UserHostAddress;
            //info += "<br/>用户信息：" + Page.User;
            //info += "<br/>服务器电脑名称：" + Page.Server.MachineName;
            //info += "<br/>当前用户电脑名称：" + System.Net.Dns.GetHostName();
            //info += "<br/>当前电脑名：" + System.Environment.MachineName;
            //info += "<br/>当前电脑所属网域：" + System.Environment.UserDomainName;
            //info += "<br/>当前电脑用户：" + System.Environment.UserName;
            //info += "<hr/>";
            //info += "<br/>浏览器类型：" + Request.Browser.Browser;
            //info += "<br/>浏览器标识：" + Request.Browser.Id;
            //info += "<br/>浏览器版本号：" + Request.Browser.Version;
            //info += "<br/>浏览器是不是测试版本：" + Request.Browser.Beta;
            //info += "<br/>浏览器的分辨率(像素)：" + Request["width"].ToString() + "*" + Request["height"].ToString();//1280/1024
            //info += "<hr/>";
            //info += "<br/>客户端的操作系统：" + Request.Browser.Platform;
            //info += "<br/>是不是win16系统：" + Request.Browser.Win16;
            //info += "<br/>是不是win32系统：" + Request.Browser.Win32;
            //Response.Write(info);
 
            //int loop1, loop2;
            //NameValueCollection coll;
 
            //// Load ServerVariable collection into NameValueCollection object.
            //coll = Request.ServerVariables;
            //// Get names of all keys into a string array. 
            //String[] arr1 = coll.AllKeys;
            //for (loop1 = 0; loop1 < arr1.Length; loop1++)
            //{
            //    Response.Write("Key: " + arr1[loop1] + "<br>");
            //    String[] arr2 = coll.GetValues(arr1[loop1]);
            //    for (loop2 = 0; loop2 < arr2.Length; loop2++)
            //    {
            //        Response.Write("Value " + loop2 + ": " + Server.HtmlEncode(arr2[loop2]) + "<br>");
            //    }
            //}
            //Response.End();
            if (Request.ServerVariables["HTTP_USER_AGENT"].ToString().Contains("WOW64"))
            {
                Response.Redirect("/Silverlight/Silverlight_x64.exe");
            }
            else
            {
                Response.Redirect("/Silverlight/Silverlight.exe");
            }
        }