If you are running Windows XP or a classic Windows Server edition, typing "Ms Shell Dlg 2" into your font selector tells the system to render text in Tahoma. If you are on Windows 10 or 11, the system defaults have shifted largely to Segoe UI, but the legacy mapping for Ms Shell Dlg 2 remains stubbornly pointing toward Tahoma to ensure legacy applications don't break.
Always prefer:
Verdict (short)
HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\Current Version\FontSubstitutes MS Shell Dlg typically maps to Microsoft Sans Serif MS Shell Dlg 2 typically maps to Microsoft Learn Ms Shell Dlg 2 Font Download Ttf