在VS2013中强制IIS Express应用程序池使用经典模式

度娘不给力啊，找了半天全是一样没用的东西，最后找谷哥，还是哥给力终于找到了。

option-1: In Visual Studio goto WebSite/WebApplication properties and change ManagedPipelineMode to 'Classic'.

option-2: Open %userprofile%\documents\iisexpress\config\applicationhost.config and locate your site in "Sites" section and change the app pool to classic (say Clr4ClassicAppPool).

If you want all the WebApplications/WebSites that you are going to create in Visual Studio to run in 'Classic' mode (by default), then in %userprofile%\documents\iisexpress\config\applicationhost.config file change the applicationDefaults app pool as shown below.

<sites> ........ ........    <applicationDefaults applicationPool="Clr4ClassicAppPool" />    <virtualDirectoryDefaults allowSubDirConfig="true" /></sites>