SyncToy is now out of Beta

Microsoft’s SyncToy, used to synchronize folders between computers.  Here’s their marketing blurb:

SyncToy is a free PowerToy for Microsoft Windows XP that provides an easy to use, highly customizable program to help copy, move, and synchronize different directories. Most common operations can be performed with just a few clicks of the mouse, and additional customization is available without adding complexity. SyncToy can manage multiple sets of directories at the same time; it can combine files from two folders in one case, and mimic renames and deletes in another. Unlike other applications, SyncToy keeps track of renames to files and will make sure those changes get carried over to the synchronized folder. "

You can find out more about it via this whitepaper.

And you can download it for free.