The images on my CD of Wittgenstein's Nachlass do not work in Windows XP or Windows VISTA. What should I do? The IVLITE program is not Windows XP or VISTA compatible and there are no upgrades available for this software. However, it is possible to redirect the Nachlass to use a different viewer. To redirect the Nachlass to use Internet Explorer, follow the steps below. [1] Assuming the Nachlass is already installed, open the file C:\WINDOWS\EXEC2.INI [2] In the line that states VIEWER=C:\IVLITE\IVLITE.EXE -L -M, change to VIEWER=C:\PROGRA~1\INTERN~1\IEXPLORE.EXE [3] Save the EXEC2.INI file and then open the Nachlass program A better viewer for the images might be one called Irfanview. You can download this program from http://www.irfanview.com/. If you choose this program as your viewer for the Nachlass images, then you will need to repeat step [2] (above) replacing the VIEWER= path with the path to the Irfanview program. Remember to use the short filenames when changing the path, i.e. C:\PROGRA~1 instead of C:\PROGRAM FILES.