I am playing with the IoC Container Unity, and according to the documentation, adding this xmlns attribute to the "unity" section must allow Visual Studio doing some Intellisense stuff :
<configuration>
<configSections>
<section name="unity" type="Microsoft.Practices.Unity.Configuration.UnityConfigurationSection, Microsoft.Practices.Unity.Configuration"/>
</configSections>
[..]
<unity xmlns="http://schemas.microsoft.com/practices/2010/unity">
[..]
</unity>
</configuration>
Actually, it doesn't work. It seems the resource has been (re?)moved. Do you know the new link ?
The actual xsd file can be found here: https://raw.githubusercontent.com/unitycontainer/configuration/master/src/Unity.Configuration.xsd