I was seeing that when you do somethings at Windows 7 that haves a progress bar, things like downloading a file. You can see that in the programs bar, at the icon of the application, there is the progress of the file downloading, but it s possible to build applications that can do this?
Take a look at the Internet Explorer icon at my screenshot: Downloading... http://img69.imageshack.us/img69/5240/downa.png
Large version here.