You can use v2008 with Vista and Windows 7 but it is not as stable on Windows 7. In contrast, MediaLab v2010 seems to be running very well on Windows 7. v2008 had some issues with long experiments and also experiments with videos. Although we seemed to be able to fix these in v2008 for Vista, Windows 7 was not as cooperative. We did some major work on v2010 and it seems so far to have paid off for Windows 7.

See version history: http://www.empirisoft.com/support/showthread.php?t=5577