writing a microsoft word toolbar

I want to write a Microsoft toolbar that gets a word from Microsoft Office Word and pass it to other application (Text To Speech) that is written personally. I've searched the web but not so开发者_如何学运维 many good ideas. First is it possible? (Sounds yes!) And is there anyone who has faced somehow the same problem? I'll appreciate any ideas.

You can use Visual Studio to create a Word 2007 (or 2010) addin with a Ribbon XML file.
MSDN has a walthough.

For 2003 or earlier, you'll need to create an addin that uses the CommandBars object to add a toolbar.