Specifically I need to add Language Selection because I write messages or
replies in different languages and sometimes even within the same message. I
managed to do it in Word but not in new or Reply To messages.

Select the word, right click it and select the language.

Another way to do it is to use the dropdown menu on the Spelling button on
the Home tab.

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Robert Sparnaaij [MVP-Outlook]
Coauthor, Configuring Microsoft Outlook 2003
http://www.howto-outlook.com/
Outlook FAQ, HowTo, Downloads, Add-Ins and more

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"Corren" <(E-Mail Removed)> wrote in message
news12FAC13-3342-403C-BD5D-(E-Mail Removed)...
> Specifically I need to add Language Selection because I write messages or
> replies in different languages and sometimes even within the same message.
> I
> managed to do it in Word but not in new or Reply To messages.