Could not load file or assembly 'App_Code' or one of its dependencies. Access is denied.

Could not load file or assembly 'App_Code' or one of its dependencies. Access is denied.
當更新IIS 虛擬目錄的時候..可能會更換asp.net版本
但是因為impersonate的關係..模擬某個user的權限
導致沒有寫入與讀取C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files
其中版本序號根據您的net framework決定
給予該目錄impersonate user的權限即可正常操作.