Starting with Version 7.0, when the runtime reduces the size of a window to fit the screen, it includes any fractional lines and columns that fit, provided the COBOL program attempts to create a window with fractional lines and columns. For example, if you create a 70.0 line window, but only a 66.4 line window fits on the display, the runtime detects that no fractional lines were attempted, and truncates the number of lines to 66.0. However, if you attempt to create a 70.1 line window, the runtime recognizes the fractional measurement and displays a 66.4 line window. To preserve the pre-7.0 behavior, set the configuration variable V62_MAX_WINDOW to 1 (on, true, yes) and fractional lines and columns are always removed. The default value is 0 (off, false, no).