The first columns of buttons are to allow you to select which versions of Windows Operating System that you want your application to be allowed to be installed on. The leftmost column is for the Minimum Windows Version and the rightmost column is for the Maximum Windows Version. There are four options to choose from; 'None', 'Windows 95', 'Windows 98' and 'Windows ME'. Example: If you do not want your application to install on any of the Windows OS's listed select None in both columns. If you were to select Windows 95 in the left column and Windows 98 in the right column then your application would install on Windows 95 and Windows 98 but not on Windows ME.
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