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Behind the scenes, the Windows Registry (specifically HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\Current Version\FontSubstitutes ) tells the computer: "If you see MS Shell Dlg 2, actually use Tahoma" . Why You Can't "Download" It
When a program calls for MS Shell Dlg 2, Windows looks into the system registry to find which physical font file (.ttf) it should actually display.
On older systems:
If a Windows program says the font is missing, it usually means a registry entry is broken. You can verify the mapping here: Registry Editor Navigate to:
Ms Shell Dlg 2 is a defined in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\FontSubstitutes .
