While looking for links on skinning in WindowsForms, I found some interesting links-

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnadvnet/html/vbnet01142003.asp

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dv_vstechart/html/vbtchShapedWindowsFormsControlsInVisualStudioNET.asp