It runs on Windows 2000/XP/Vista (32-bit) Operating Systems. This version of the software is only free for personal use, if you're a business you will have to buy a licensed version.
Windows Vista already has built-in functionality to create, shrink, extend and delete a partition. So I would suggest trying this built-in functionality first. If you're running Windows XP or below, then you might want to try this software.
Note: I need to note that I have not personally tested this program, so use it at your own risk.