Fonts can be downloaded from a big number of sites.

like:
www.dafonts.com
www.1001fonts.com
etc...

XP and 2K Systems can only hold 999 Fonts on your system anymore and your computer may crash or reject them.
To install extract the file into your C:\Windows\Fonts folder
or
extract to a folder and copy and paste the font into your fonts folder and it will install the font properly. (Recomeneded Method).