For those of that have not already seen Dave Templin's new article in MSDN Mag. I encourage you to check it out. I liked it so much I made it a headline this week on the VB DevCenter and have it on the MSDN home page next week.
For those of that still have VB 6.0 COM components, which is a lot of people, this is a great way to reuse them with some of the advantages of .NET deployment, like ClickOnce and XCopy.
Little background on Registration Free COM. RegFree COM was a change to the COM activation model that was introduced in the operating system in Windows XP. Visual Studio 2005 introduces the ability to adjust the isolation level on references to COM objects and adds tools support for this technology.
This is really a great bit of technology in my view but it has not been widely talked about to date and many people don't know about it.