By Muhammad Shujaat Siddiqi
Windows WF was released as one of the three great features of .NET 3.0. The other two features were Windows Presentation Foundation and Windows Communication Foundation. Since then it's been used in various ways by different organizations in their product design but its industry penetration hasn't been that well. With .NET 4.0, it's been completely redesigned, with a lot of new features added along with support of state machine workflows in .NET 4.0 platform update 1. In this chapter, we will be discussing two different scenarios in which Windows WF can be a useful help developing MVVM-based application.WF has a natural application in the business rules execution, especially for long running processes. It can also be used to control the flow of execution of an application.