Applies to: Microsoft Office Word 2003
A subdocument in a master document (master document: A "container" for a set of separate files (or subdocuments). You can use a master document to set up and manage a multipart document, such as a book with several chapters.) may be locked when somone else is working on it, or it may be set to open as read-only.
Notes
Microsoft Word locks subdocuments when any of the following cases is true: