Document update: "The Role of Groups..."
Microsoft updated today the document The Role of Groups and Access Control Lists in Microsoft Exchange 2000 Server Deployment. It's a quite interesting reading for all the people still using Exchange 5.5. Among other things, the document discusses the differences between Distribution Lists and Windows Distribution groups, as well as some considerations for migration and upgrade to Exchange 2003.
By the way, if you're planning an Exchange migration to a different forest/organization you should have present that there is no way of migrating Distribution Lists using only the tools provided by Microsoft. That's why I decided to write a script that does the job. For complete instructions on how to use it and to download it, please read the article at MSD2D.com or at this blog.