"There isn't much information available for creating Expression blend 3 addins. There is some information on creating blend 2 plugins, but the addin model has changed between versions."
As of .Net 3.5, we will gain a built-in method for doing plugins in the .Net CLR -- This article explains the basics of plugins and is followed by a second article focusing on the new System.AddIn namespace
Dot-NetMap has gone public under the Ms-PL license (no longer a pure research project), so I can findally start using it!
There's also an Excel addin and a stand-alone app.
WPF, in conjunction with the .NET Framework add-in model, allows you to address a wide variety of scenarios that require host applications to display UIs from add-ins.
Addins (plugins) for WPF can even do UI. I'm not convinced this is necessary to do UIs with plugins, but it's necessary if you want to allow untrusted code to do it.
VSTrac is a Visual Studio addin which integrates Trac functionality into Visual Studio 2005 and 2008. It's main function is to facilitate management of tickets from within Visual Studio...
Solution Factory is a Visual Studio Addin that exports a solution as a Visual Studio multi-project template, so you can provide best practices for specific development project types.
AnkhSVN is a Visual Studio .NET addin for the
Subversion version control system. It allows you to perform the most common
version control operations directly from inside the VS.NET IDE. Not all the functionality
provided by SVN is (yet) supported, but the majority of operations that support the
daily workflow are implemented.
AnkhSVN supports enough of SVN in Visual Studio to get you the source control overlays in your solution explorer, which is all I *really* need. You might want to consider running it along *with* TortoiseSVN
The Sample Code Generator (XSDObjectGen) tool takes an XSD schema as input and generates sample code showing how to mark up C# and VB.Net classes so that when serialized with the XML serializer, the resulting XML will be valid according to the original schema.
Libertà is an open source suite of portable software and wrappers for making existing software portable, including a custom launcher, backup tools and more.
An open source project to collect and distribute "Tasks" for MSBuild. lats of them available already like FTP, Source Control, Windows Script, Zip and more.
Sdc.Tasks is an MSBUILD tasks library which provides over a hundred new tasks for driving continuous integration builds, deploying and testing applications and much more.
The Solutions Build Framework is a set of tools and procedures that represents MSUK best practice for developing enterprise applications. This includes continuous integration build; automated multi box rig deployment; automated testing; automated documentation.
The SBF is the "best practices" for doing continouse integration builds, automated deployment, testing, and documentation. Sdc.Tasks is a library of MSBUILD tasks which support those practices.
Great instructions on how to install various tools you would want for doing development with Visual Studio, Subversion and WiX. Particularly note the macro for generating GUIDs!