Working with fonts and characters in Windows Forms applications can indeed vary between different Windows OS versions. Windows 10 introduced several improvements and changes in font rendering and character support compared to Windows 7. Here are some key points to consider: Font Rendering: Windows 10 introduced improvements in font rendering, offering better ClearType and subpixel rendering. This results in crisper and more visually pleasing text. Windows 7 also supports ClearType, but Windows 10 may offer a more refined experience. Font Compatibility: Windows 10 typically supports a wider range of fonts and character sets out of the box, including enhanced support for Unicode characters. This can be important if your application involves internationalization or special symbols like ⬤. DPI Scaling: Windows 10 has better support for high-DPI displays, allowing for more precise scaling of fonts and user interface elements. This can be crucial for ensuring your application looks good on modern high-resolution screens. Theme and UI Elements: Windows 10 offers a more modern and flexible user interface framework compared to Windows 7. This may affect the appearance of your WinForms application, including how fonts and characters are rendered within the UI elements. Compatibility Modes: Windows 10 includes compatibility modes that allow you to run older Windows 7 applications without significant issues. However, it's still essential to test your application on different OS versions to ensure proper functionality. for more info visit my page MOFA Attestation | MoFAIC | MOFA Attestation in Dubai[^] Mofa atteststation in Dubai