HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\Current Version\FontSubstitutes Microsoft Learn How to "Download" It

To summarize:

After installing the physical TTF, you must tell your system that when an app calls Ms Shell Dlg 2 , it should use your new font.

Microsoft recommends that if your application doesn't need to support extremely old operating systems like Windows 9x, you should specify Tahoma or Microsoft Sans Serif explicitly rather than using the MS Shell Dlg alias. Microsoft Learn Troubleshooting Missing Fonts

MS Shell Dlg 2 is a placeholder name used by developers. When an application requests it, Windows looks into the system registry (under FontSubstitutes ) to decide which real font to display. The Physical Equivalent:

Contrary to popular belief, is not a physical font file (like Arial.ttf or TimesNewRoman.ttf) that sits in your Fonts folder. Instead, it is a logical font name or a "face name" alias used by Windows. The Role of Mapping

"MS Shell Dlg 2" = "Tahoma"