Older systems might lack Tahoma entirely and substitute a different font like Courier New.
| | Actual Font to Use | Download Source (Safe) | |-----------------|------------------------|----------------------------| | Windows 2000/XP default dialog text | Tahoma (pre-installed) | Already on Windows. No download. | | Windows 95/98 classic dialogs | Microsoft Sans Serif | Pre-installed. | | Pixel-perfect 8pt shell dialogs | MS Sans Serif (old .fon file) | Extract from Windows 98 VM (legal only with license). | Ms Shell Dlg 2 Font Free Download UPD
By understanding the underlying mechanism, you'll be able to solve the problem correctly and safely, without ever needing to download a thing. Older systems might lack Tahoma entirely and substitute