Use a script or other method to copy the stationery file to the
Stationery folder for the user's Windows profile (See
http://www.slipstick.com/config/backup.htm) and set this registry
value to mandate use of that stationery:
Key:
HKEY_CURRENT_USER\Software\Policies\Microsoft\Office\11.0\Common\MailSe
ttings Value name: NewStationery
Value type: REG_EXPAND_SZ
Value: Name of the HTML file, without the .htm tag
For example, if the name of the stationery file is “Company
Letterhead.htm,” the value for NewStationery would be “Company
Letterhead.”
Similarly, a value called NewTheme in the same key controls the
default theme for messages created using WordMail.