问题：
We have recently upgraded to IIS7 as a core web server and I need an overview in terms of the permissions. 我们最近升级到IIS7作为核心Web服务器，我需要在权限方面进行概述。 Previously, when needing to write to the file system I would have give the AppPool user (Network Service) access to the directory or file. 以前，当需要写入文件系统时，我会给AppPool用户（网络服务）访问目录或文件。
In IIS7 I see, as default, the AppPool user is set to ApplicationPoolIdentity . 在IIS7中，我看到，默认情况下，AppPool用户设置为ApplicationPoolIdentity 。 So when I check the task-manager, I see that a user account called 'WebSite.com' is running the IIS Process ('Website.com' being the name of the website in IIS) 因此，当我检查任务管理器时，我看到一个名为“WebSite.com”的用户帐户正在运行IIS进程（'Website.com'是IIS中网站的名称）
However this user account doesn't exist if I try to use that to give permissions. 但是，如果我尝试使用该帐户授予权限，则此用户帐户不存在。 So, how do I determine which user to give the permissions too? 那么，我如何确定哪个用户也可以授予权限呢？
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See below for the problem in screen shot. 有关屏幕截图中的问题，请参阅下文。 Our website (www.silverchip.co.uk) runs on the username SilverChip.co.uk. 我们的网站（www.silverchip.co.uk）使用用户名SilverChip.co.uk运行。 However when I add pemissions, this user doenst exist! 但是当我添加提交时，这个用户确实存在！
=================================See AppPool Image =================================请参阅AppPool图像
解决方案：
参考一： https://stackoom.com/question/Ulxo参考二： IIS7 Permissions Overview - ApplicationPoolIdentity