How do I code a progress bar for Windows 7 to also update itself on the taskbar?

Question

Windows 7 has an AWESOME new feature that applications can report the progress of the current activity through the status bar. For example, when copying file(s) using Window

Answer 1

There's a good article in MSDN magazine about the new taskbar APIs. And yes, the feature is awesome :-)

Essentially, it's all about implementing IFileOperation. There's a good article about using it in managed code here.