For Win 7 OS, I run RTOBD2 in Win XP service pack 3 compatibility mode. What I do to reduce or eliminate Win compatibility crashes is load the .cal file from the drop down menu; see attached screen shot. I still tend to get crashes when comparing cal files. I often have to load / browse to a .cal file, save the loaded .cal file, exit RTOBD2 then reopen RTOBD2 to select the .cal file I want to edit from the drop down menu.
dave w
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