原文地址：http://blog.csdn.net/hyugahinat/article/details/7532898
In Visual Studio 2010 (RC) there is no longer a "browse with" context menu when right clicking .aspx pages. How can you change the default browser now?
By default it seems to use the operating system default browser, but I would prefer to use IE when debugging ASP.net apps. (I am testing this with ASP.net MVC 2)
在Visual Studio 2010（RC）中右键点击 .aspx 页面已不复存在"browse with"菜单项。那要如何修改调试时使用的默认浏览器呢？
默认情况下，VS会使用操作系统的默认浏览器，但我在调试 ASP.NET 程序时更偏向于使用IE浏览器。（我是测试的是ASP.NET MVC2的网站）
There is no "Browse With" option on the .aspx Views in an MVC project as they are not meant to be directly browseable.
What I tend to do is add a Default.aspx webform in the root of the site and this, when right clicked, will give you the Browse With option. You need to make sure to update your routing though otherwise IIS/Cassini will try to serve it up, something like this
MVC 工程中的 .aspx 视图没有"Browse With"菜单项是因为它禁止被直接浏览。
我的做法是（2步都要做完啊）
第一步：在网站的根目录下添加一个名为"Default.aspx"的 webform 视图，右键点击它就会看到"浏览方式"选项。
第二步：你需要确认更新你的路由使IIS/Cassini 能够使之运转，在Default.aspx的cs里面写上下面这句,不然会出现错误(VerificationModule: End of Request)
public void Page_Load(object sender, System.EventArgs e) {
// Change the current path so that the Routing handler can correctly interpret
// the request, then restore the original path so that the OutputCache module
// can correctly process the response (if caching is enabled).
string originalPath = Request.Path;
HttpContext.Current.RewritePath(Request.ApplicationPath, false);
IHttpHandler httpHandler = new MvcHttpHandler();
httpHandler.ProcessRequest(HttpContext.Current);
// HttpContext.Current.RewritePath(originalPath, false); //这句我注释掉了，因为会不去掉的话好像会出现 错误信息(VerificationModule: End of Request)然后显示在下面，MVC主页还是会出来
}