Just download and install in Windows

But I believe that the recipient also need to have the font installed or it will be changed to a standard font.

Thank you. I should have added I need this in my signature displaying my company name. My company logo is in this font. Also I already do have this installed on my computer/windows. I use it on Microsoft Word 2010. But for some reason it does not work on thunderbird. Any advise please

As said, your correspondents will only see a font applied to text if they also have it installed on their computers.

If the font really matters to you, create or obtain a graphic (image) of your logo and insert this into your signature.

As Zenos said, make it an image, That was what my city administration had to do after "designers" introduced a non standard and not even free font in the city logo.