In that case, I think you'll have to start the Windows Task Manager (e.g.
ctrl-alt-del then click the Task manager button in Win 2000 and later) and
a. ensure there is nothing (or nothing apparently related ) in the
Applications list.
b. click on the Processes tab and look for WINWORD.EXE (which is the name
of the Word application process, which can be running even if you cannot see
it). If it is there, select it and click the End process button. There can
be more than one "copy" of WINWOD.EXE in the list, so be willing to end them
all.

Why would WINWORD.EXE be listed? Perhaps something else in your system is
using the Word object to do something: some versions of Outlook use Word as
the message editor, but it could be something else.

Peter Jamieson