Setting up your development environment In order to develop RedCritter Apps you will need Microsoft Visual Studio 2008 or Visual Studio 2010 and Microsoft Outlook 2007. You can create your Apps using Silverlight 3 or later with either the C# or VB.NET languages.     Required   1) Visit Microsoft's Silverlight site to install the Silverlight developer tools. 2) Install RedCritter V1 SDK to get the required RedCritter assemblies. 3) Install RedCritter Project Templates for Visual Studio.     Optional   Install Microsoft Expression Blend 3 + SketchFlow   Download the Silverlight Toolkit     Additional help and learning resources   Visit Silverlight.net if you have questions with your Visual Studio or Silverlight setup. Microsoft also has great video tutorials to walk you through common Silverlight programming tasks. For questions specific to RedCritter development visit our RedCritter Developer Discussions on Google.