REGEDIT4

[HKEY_CLASSES_ROOT\.mp3]
@="mp3file"

[HKEY_CLASSES_ROOT\mp3file\shell\AudioEditor]
@="オーディオエディタで開く"

[HKEY_CLASSES_ROOT\mp3file\shell\AudioEditor\command]
@="\"W:\\PF2\\ae421\\AEditor.exe\" %1"