The installation is performed by using il WEDELEDITOR and more specifically by using the menu TOOL. For the intallastion the following path have to be set.
Tools:Setting -- Setting the default tools: music editor (WDF inside) , lyric editor (WDF inside), text editor (for example a notepad), font editor (fontographer), Milla editor (for example notepad or a specific visual editor of the rule table), fretboards editor (a WDF outside editor), etc. For each executable file a full path is set including the file name.