Yes, free for commercial use. The Krypton Toolkit offers developers several custom controls to give your Windows Forms application an Office 2003 look-and-feel.

The toolkit provides multiple user interface controls for your Windows Forms applications including but not limited to custom buttons, frames, splitters, groups, labels, and the list goes on.
The Krypton Toolkit is specially targeted for Visual Studio 2005 and the .NET Framework 2.0. Plus, don’t forget… it is FREE for commercial use.
Jump on over to Component Factory and download your copy today.