Hi,
I created an integration for Microsoft.Extensions.DependencyInjection.

You can find the code here: https://gist.github.com/cwe1ss/050a531e2711f5b62ab0

The code is based on the following links:

• https://github.com/autofac/Autofac/tree/master/src/Autofac.Extensions.DependencyInjection
• https://davidzych.com/asp-net-vnext-dependency-injection-with-castle-windsor/
• Castle.Windsor DI container [Working code] dotnet/aspnetcore#263
• https://github.com/davezych/DependencyInjection/tree/windsor/src/Microsoft.Framework.DependencyInjection.Windsor
• http://stackoverflow.com/questions/28353187/how-can-i-get-started-with-asp-net-5-and-castle-windsor-for-dependency-injection

I adjusted the code for RC1 and fixed some issues:

• Components were added with .OnlyNewServices() which resulted in services that are supposed to exist multiple times not being added
• GetService<IEnumerable>() was not resolved properly. I had to add special handling for IEnumerable<>
• ASP.NET Core doesn't expect GetService() to return an exception if the component wasn't registered. (they use it for optional dependencies). For this reason, I added a check to Kernel.HasComponent()

I'm not sure why the call to BeginScope() in Startup.cs is necessary - if it's missing, the first request fails. Seems like ASP.NET Core doesn't start the scope for the first request or some Scoped service is requested before it does.

best regards!