yzhuan1 wrote: > > I use a PC. If I want to install VTK, do I need install MS Visual c++ ? If you run an MS operating system on your PC, then MS VC++ is easiest. You can also use the Borland C++ compiler. If you run some flavor of Unix on your PC, you can use gcc. See Section 5 of the FAQ: http://public.kitware.com/cgi-bin/vtkfaq?req=index -Jeremy