IIS Log中出现这个错误：

[HttpException (0x80004005): The current identity (NT AUTHORITY\NETWORK SERVICE) does not have write access to ‘C:\Windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files’.]
System.Web.HttpRuntime.SetUpCodegenDirectory(CompilationSection compilationSection) +9022990
System.Web.HttpRuntime.HostingInit(HostingEnvironmentFlags hostingFlags) +152

1） 进入.NET 安装目录</div>

C:\Windows\Microsoft.NET\Framework\v2.0.50727

2） 执行此命令：</div>

aspnet_regiis -ga IUSR_<machinename>