Is there a way I can force Word to spell check my document each time I
either save or close a document.

I specifically need to check for occurrences of the words 'you' and 'your'
as they are not always used in the correct way.  Each time one of these
words are used I want a context message asking for approval just as in the
spell check dialog box.

Grammar check is not an option here.

Thank you.

In the Word DocumentBeforeSave and the DocumentBeforeClose methods you can
use the Find to look for each word, then code a messagebox or other form to
prompt the User.

Query the VBA object browser on the string BeforeClose.