High DPI
Definition
Any custom DPI setting with more than 96 DPI (the default setting). Windows User Interface Glossary.
Setting High DPI in Windows
In Windows 7 go to Control Panel > Appareance and Personalization > Display. Select Smaller 100% (default), Medium 125% or Larger 150%. If you select 100% (96 DPI) is the default Windows DPI setting, not High DPI. If you select 125% (120 DPI) the option "Use Windows XP style DPI scaling" is enabled, applications you run under this setting are scaled like at Windows XP. If you select 150% (144 DPI) the option "Use Windows XP style DPI scaling" is disabled, applications you run under this setting must be High DPI Awareness else they will be scaled by the system like a blurred image (DPI Virtualization). Also you can set your custom DPI setting in the option "Set custom text size (DPI)".
