This document summarizes Cloud Foundry's efforts to extend support for .NET applications. Key points include: - Cloud Foundry launched Iron Foundry in 2011 to support .NET developers, with over 11,000 downloads. - Cloud Foundry version 2 was modified to support both Ruby and .NET applications running on different platforms. This required changes to components like the droplet execution engine. - A .NET build pack was added to deploy .NET applications using IIS instead of Tomcat/TC Server. Standalone console apps written in .NET can also now be run on Cloud Foundry.