JSON.NET for ASP.NET

I had to add a JSON service to a very old ASP.NET 2.0 website I worked on quite awhile back.
Upgrading to the latest ASP.NET 4.0 was not an option. So the first thing that comes in mind is to quickly implement Http handler. Here is a pretty nice JSON serialization library that I stumbled upon and that worked for me quite well: http://json.codeplex.com