If you want to create a custom grasshopper component (www.grasshopper3d.com), it is good to have a project wizard to get you started. Visual Studio has a grasshopper project wizard that can be found by searching for "grasshopper" in the extension manager's online gallery. The code here is used for building this Visual Studio project wizard.
You need Visual Studio 2010
You also need the Visual Studio SDK: http://www.microsoft.com/en-us/download/details.aspx?id=21835
Compiling in Release mode with GrasshopperTemplatePackage as default project should produce a file named "GHPackage.vsix" inside /GrasshopperTemplatePackage/bin.
Do not change the ID of the project Modify the version as stated in source.extension.vsixmanifest to trigger update.
Copyright (c) 2013 Robert McNeel & Associates. All Rights Reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software.
THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY. ALL IMPLIED WARRANTIES OF FITNESS FOR ANY PARTICULAR PURPOSE AND OF MERCHANTABILITY ARE HEREBY DISCLAIMED.
Rhinoceros is a registered trademark of Robert McNeel & Associates.