Using MS Word to send mail through Vista Windows Mail

Under XP when I wanted to send an email from MS Word, the program used
Outlook Express.
Even when I had MS Outlook installed with no email options.

Under Vista I can't send mail from MS Word.
I can make the mail, but there is no possibility to send the mail.
It goes to the outbox of MS Outlook.
I only use Outlook to manage my contacts and agenda. There is no
email-account defined in Outlook.

I use Windows Mail to send mails.

Is there a way as in XP to make Windows Mail default mailsender?

Maybe someone can help me out.

Marga