When is ASP.Net 4 available on a server

i was building a new small website for an existing client, and thought about building it with ASP.Net 4. But in 开发者_运维百科the apppoolsettings, i could only choose framework 2.0, so i guessed that 4.0 is not available on the server.

Is it something i have to install on the server, or will it be installed via windows update somewhere in time?

it's a win2008 standard server.

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You can certainly download and install it yourself, e.g. from here. You want the full .NET 4, not the .NET 4 client profile - that doesn't include ASP.NET.

According to this blog it will eventually become an optional update on Windows servers (if it isn't already).

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you just need to install .net framework 4.0 on server.