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For a quite long time (since 1998) I was using DOS based software package called VISOTOOL to handle Landis&Staefa PRV2 controllers. Recently I got in touch with the Customer having over 20 PRV2 controllers in his facility, which I am responsible for. Although my old VISOTOOL (dated 1997) is still working I was wondering if there is any newer version running on Windows operating system. It is hard to find this information on internet. Anyone knows? Anyone can share this with me? ;-)