When launching CATIA V5 on a Windows 11 machine, you might notice a black command prompt window displaying the message, "This application is now HighDPI aware.” This message relates to how Windows manages display scaling on high-resolution screens. DPI, or Dots Per Inch, measures how many pixels are packed into a given area of the screen—higher DPI settings lead to crisper, more detailed visuals. However, this can also shrink user interface elements, making them harder to read or click.