You either change it for the whole system using the Display control panel, or you complete draw the window frame yourself, which requires knowledge about the Window APIs and P/Invoke. If you want to venture down that route, I highly suggest you read all of Interoperating with Unmanaged Code[^] (pay close attention to the marshaling topics) and search this site for examples of owner-drawn window frames. BTW, the link doesn't work. This posting is provided "AS IS" with no warranties, and confers no rights. Software Design Engineer Developer Division Sustained Engineering Microsoft [My Articles] [My Blog]