So, my only excuse is that the usual (for me) way to find files failed. It's not really a file. It's a command. Edit Configuration "C:\Program Files\DOSBox-0.73\dosbox.exe" -editconf notepad.exe -editconf "%SystemRoot%\system32\notepad.exe" -editconf "%WINDIR%\notepad.exe" Thanks, SKARDAVNELNATE— …