Jeremy is delivering a Webcast on Windows and Linux interoperability which explains the concepts in his article (which we published a couple of months ago) really well.  Here are the details...

TechNet Webcast: Microsoft Windows and Linux Interoperability: Shattering the Myths (Level 200)
Friday, October 7, 2005 - 11:30 AM - 12:30 PM Pacific Time
Jeremy Moskowitz, Author, Instructor, Infrastructure Architect and founder of
www.WinLinAnswers.com
For many organizations, interoperability is critical to their technology environments. To cooperate with Linux, Microsoft Windows Server 2003 (and the upcoming R2) is designed with interoperability in mind. If you are in an environment where you need to Linux and Microsoft Windows to work cooperatively, you need to know what Windows Server 2003 has to offer to make that communication easier.  This webcast shows you the features built into Windows Server 2003 which help you make contact with Linux.
http://msevents.microsoft.com/CUI/EventDetail.aspx?EventID=1032281351&Culture=en-US

I'd really recommend that you spend some time watching the webcast to clarify some of the misunderstandings about interoperability between Linux and Windows.