Registering .NET without affecting other sites

Only tested with IIS 7 on Server 08 R2

1. Open ‘CMD’ and navigate to ‘C:WindowsMicrosoft.NETFramework<.NET version number>
2. Type ‘aspnet_regiis.exe -ir’
   1. If this is a fresh version of IIS (no other sites running on it) or you’re not worried about the hosted sites breaking with a framework change you can use -i instead of -ir.
   2. At this point you will see it begin working on installing .NET’s framework in to IIS for you
3. Open the IIS management console and click on ‘Application Pools’
4. You should now see your ASP.NET version number registered.

Source: http://stackoverflow.com/questions/4890245/how-to-add-asp-net-4-0-as-application-pool-on-iis-7-windows-7