These were probably written against the old-school Win32. It's pretty easy to fix.

  Right-click on the `.exe`
  Properties
  Compatibility tab
  Change settings for all users
  Change high DPI settings
  Under 'High DPI scaling override' section, tick box for 'Override high DPI scaling behaviour. Scaling performed by'
  In the drop-down box below, select 'Application'

For MMC snap-ins like `diskmgmt.msc`, `services.msc`, or `devmgr.msc`, there's a Registry key you can set. See this ServerFault question: https://serverfault.com/q/570785/535358