Office Open XML uses OPC to store documents. Here's how to use packages for your own purposes.
Windows Presentation Foundation (WPF) can interoperate with Windows Forms, letting you add legacy controls to your new interface—or new WPF controls to your existing Windows Forms applications. Either way, you need to make them play nicely together.
The command framework in WPF provides a set of powerful tools that let developers build more intelligent user interfaces.
Caching can help minimize network traffic when building service-oriented architecture applications; unfortunately, Microsoft's Caching Application Block falls short in a few areas.