Eric,

Here are some companies that offer that capability. Each one costs though:

http://www.actiprosoftware.com/Products/DotNet/DockableWindow/Default.aspx
http://infragistics.com/products/dockable.asp

Here is a link to creating a collapsible panel bar which might give you want you need:

http://www.codeproject.com/cs/miscctrl/CollapsiblePanelBar.asp

Here is another article that might be useful:

http://www.codeproject.com/csharp/csdoesshell3.asp


>Do you know a control (free or cheap) that can do what we have into VS.Net IDE that has the auto-hide feature and that you can pin ?