在IIS 6默认网站属性（“ ASP.NET”选项卡）中将ASP.NET版本设置为3.5。

Question

How to set ASP.NET version to 3.5 in the IIS 6 Default Web site properties (ASP.NET tab)? From what I can see was version 2 (even though I have install version .NET 3.5)

Answer 1

There isn't a true "ASP.NET 3.5". "ASP.NET 3.5" is really "ASP.NET 2.0" plus some extra assemblies.

Answer 2

You cannot specify this in IIS. For websites earlier than Framework 4.0 and greater than 2.0 you need to specify version 2.0 in IIS.

However there are configurations in web.config to restrict a website to run or compile under framework version 3.5. Visual Studio by default make these setting in web.config

To be sure here are some parts of the web.config

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