Written November 2019
"Dpi Per Monitor awareness" was introduced in Windows 8 so that developers could take advantage of display characteristics that only make sense on high-resolution monitors. The -dpm switch in A-Shell implements this Windows function, and you must be running Windows 8.1 or greater to realize its benefits. Below are two examples showing how a monitor with resolution 3840x2160 displays text and graphics with the -dpm option being set (above and left), and without it. On a 1920x1200 monitor, there was no apparent difference between the "with" and "without" -dpm setting.
Text only output:
History
2019 September, A-Shell 6.4.1666: Add switch to A-Shell.