Json.NET
http://james.newtonking.com/projects/json-net.aspx
http://www.codeplex.com/json/


Description:

The Json.NET library makes working with JSON formatted data in .NET simple. Quickly read and write JSON using the JsonReader and JsonWriter or serialize your .NET objects with a single method call using the JsonSerializer. Json.NET's features include:

- Lightning fast JsonReader and JsonWriter
- The JsonSerializer for quickly converting your .NET objects to JSON and back again
- Json.NET can optionally produce well formatted, indented JSON for debugging or display
- Attributes like JsonIgnore and JsonProperty can be added to a class to customize how a class is serialized
- Ability to convert JSON to and from XML 



Instructions:

 1. Extract Newtonsoft.Json.dll and Newtonsoft.Json.xml from the archive's /bin directory into your own applications.
 2. Add a reference to Newtonsoft.Json.dll within Visual Studio.NET to your project.



Silverlight:

Json.NET has a build that works with the Silverlight .NET runtime. Reference the Newtonsoft.Json.Silverlight.dll from your Silverlight project.



License:

Copyright (c) 2007 James Newton-King

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, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.