The Microsoft .NET ***************work version 2.0 redistributable package installs the .NET ***************work runtime and associated files required to run applications developed to target the .NET ***************work v2.0.

The .NET ***************work version 2.0 improves scalability and performance of applications with improved caching, application deployment and updating with ClickOnce, support for the broadest array of browsers and devices with ASP.NET 2.0 controls and services.
more info