Getting & setting file properties

In Windows Explorer if you right-click on a file & pick Properties, you get the Properties dialog. On the Summary tab there are properties for Title, Author, Subject, Category, etc., as shown below. Is there a way to programatically get & set these properties? If so, how would I go about doing that? Could someone point me in the right direction or post a code sample? Thanks...

I can't say I've ever tried this, but perhaps this will help:
http://www.developerfusion.co.uk/show/5093/