From Release 3.0A, you can use WinWord as your notes editor in the implementation guide (IMG).
You can only choose WinWord as your notes editor on a Windows front-end.
WinWord has to be installed on the Windows front-ends you use for notes.
You can choose a notes editor in the Customizing First steps menu.
The factory setting for the Notes editor is SAPscript.
If you choose WinWord as your editor,
If you change back to SAPscript as your editor,
So it is better to decide whether you are going to use SAPscript or WinWord as your notes editor before you start work on your Customizing project. Your selection applies equally across all Customizing projects, and also for transaction SO70, Hypertext structure maintenance.
If choosing WinWord as your editor does not work,