Hi, I have a PC with windows 7 64-bit, on which I want to newly install itk, vtk, isgtk, fltk etc. As I also need QT for which there is only a 32-bit installer, I am hesitating whether to install the libraries for 32-bit or 64-bit! Is it possible to build the toolkits for 32-bit on a 64-bit windows? Much thanks, Zein