If you are using ASP.NET 1.1 on your Windows shared hosting account, you have "full trust" on the server. If you are using .NET runtime environment 2.0, you have 'medium trust' on the server.
Trust level refers to permissions set in the Web.config file that dictate
what operations can and cannot be performed by Web applications.
使用 ASP.NET 1.1 的话 full trust 开启。
使用 ASP.NET 2.0 的话 full trust 不开启。