我目前正在开发的.NET 4客户端配置文件的应用程序，因为这是将通过Windows Update。

不过，我不能添加的引用 System.Web.dll中，因为它没有在这个版本存在？ - 我该怎么办

时它来部署System.Web.dll中伴随着我的应用程序是个好主意，还是会不工作？我真的需要HTTP连接和所有的，所以我不能改变我的应用程序作为一种解决方法。瞄准我的应用程序到.NET 4（无客户端配置文件），也许可能还是会说只是没有计算机，只有在客户端配置文件工作？

.NET 4客户端配置文件，因为这是   版本将在最present   通过Windows Update家用电脑

不是真的。 .NET 4（客户端配置文件或不）是目前没有在任何Windows安装在默认情况下present。例如，Windows 7自带.NET 3.5 SP1，而不是.NET 4.0。有可能是一个窗口的更新，但它是可选的。

因此​​，您不妨针对完整的.NET 4的框架。

I'm currently developing an application for .NET 4 Client Profile, as this is the version that will be present on most home computers through Windows Update.

However, I cannot add a reference to System.Web.dll as it does not exist in this version - what should I do?

Is it a good idea to deploy System.Web.dll along with my application, or won't that work? I really need HTTP connections and all, so I cannot modify my application as a workaround. Is targeting my application to .NET 4 (no client profile) perhaps a possibility or will that just not work on computers with only the Client Profile?

NET 4 Client Profile, as this is the version that will be present on most home computers through Windows Update

Not really. .NET 4 (client profile or not) currently isn't present on any Windows installation by default. For example, Windows 7 comes with .NET 3.5 SP1, not .NET 4.0. There may be a windows update, but it is optional.

Therefore, you might as well target the full .NET 4 framework.