If anyone wants to justify the cost of Krypton suite then I suggest they look at the potential alternatives for providing a .NET framework for supporting dockable windows (that includes the ribbon bar etc). The single developer license for Krypton suite of $499 is at least 5 times better than any comparable alternative I found, and you get all of the source code thrown in AND one year of free support. Top marks to the developer of this suite of tools.
