Since Ms Shell Dlg 2 is historically Tahoma, you need the font files.
Navigate to: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\FontSubstitutes Ms Shell Dlg 2 Font Download Ttf
You can verify what your computer uses for this alias by checking the following registry key: Since Ms Shell Dlg 2 is historically Tahoma,
There are several reasons why you might need to download the Ms Shell Dlg 2 font: Ms Shell Dlg 2 Font Download Ttf