这是web平台安装程序的32位和64位版本。之前被平台4.0坑过的朋友们可以用这个

Microsoft Web Platform Installer 5.0 The Microsoft Web Platform Installer (Web PI) is a free tool that makes getting the latest components of the Microsoft Web Platform, including Internet Information Services (IIS), SQL Server Express, .NET Framework and Visual Web Developer easy. The Web PI also m