I have two folders in the installed QT directory: 4.8.0 and 4.8.0_x64. -- View this message in context: http://vtk.1045678.n5.nabble.com/Building-VTK-5-8-0-with-QT-option-for-Visual-Studio-9-2008-Win64-tp5480527p5480667.html Sent from the VTK - Users mailing list archive at Nabble.com.