EasyProjects .NET - the latest generation web-based Project Management System. It is called "Easy Projects" for a reason - it was specifically designed to make project management straightforward and hassle-free. Track and organize any type of project using multi-nested projects and tasks, detailed statistics and reports, email notifications and alerts, issues and requests tracking, message board and more.
Easy Projects .NET Personal (Community) Edition is FREE for use by a single user.
Requires Microsoft .NET Framework. (Note that .NET Framework is included in Windows XP. It is recommended to update to the latest version.)