With the expanded partitioning abilities of Vista and Windows 7, Paragon Partition Manager Express 10's limited feature set--while unique--means it is probably only worth the download for XP users. That said, the free program's distinctive take on implementing basic partitioning is worth a look.
PME 10 offers only two options: Create and Resize. While that may seem restrictive, these are not your run-of-the-mill functions--both work on drives that are already fully-partitioned. For instance, choose the Create function on a 500GB drive that already has a 500GB partition and Partition Manager Express offers to shrink the existing partition and assign space to the new one. Choose the Resize function and you're given the opportunity to resize two partitions at once, changing the dividing line between them as it were. The Resize function won't shrink a single partition, but you can use the Create function for that.
The one feature I missed was a Delete function. I was hoping that the Resize function would do that by shrinking a partition to zero, but it didn't. Windows OSs from XP onward have a delete function, but why Paragon omitted this function is a bit of a mystery to me. Partition Manager Express 10 also lets you create a boot disc or flash drive for emergencies. Along with Express's Create and Resize functions it adds a boot corrector to fix common master boot record problems, as well as a wizard that helps you dual-boot Macs to OS X and a Microsoft operating system.
To install Partition Manager Express 10, you need to register with Paragon--including your e-mail address. After that, they'll send you the free product key and serial number you need to complete the install. The Receive Offers checkbox is de-selected by default and in my experience, the company isn't spam-happy…but you never know, so proceed with caution.
Partition Manager Express 10 has some unique features, and I found the program rock solid in my testing. If you have the need for such a program, this freebie's a good bet.