SyncToy : XP SP3 and Vista SP1 Synchronization Tool

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

Following features were added to this release of SyncToy:

Dynamic Drive Letter Assignment: Drive letter reassignment will now be detected and updated in the folder pair definition.
True Folder Sync: Folder creates, renames and deletes are now synchronized for all SyncToy actions.
Exclusion Filtering Based on Name: File exclusion based on name with exact or fuzzy matching.
Filtering Based on File Attributes: The ability to exclude files based on one or more file attributes (Read-Only, System, Hidden).
Unattended Folder Pair Execution: Addressed issues related to running scheduled folder pairs while logged off.
Folder Pairs With Shared Endpoints: Ability for folder pairs associated with the same or different instances of SyncToy to share end-points.
Command line enhancements: Added the ability to manage folder pairs via the command line interface.
Re-Architect Sync Engine: The SyncToy engine has been re-architect to provide scalability and the ability to add significant enhancements in future releases.
Sync engine is also more robust insomuch that many single, file level errors are skipped without affecting the entire sync operation.
Sync Encrypted Files: Sync of Encrypted files works when local folder and files are encrypted, which addresses the common scenario involving sync between local, encrypted laptop PC folder and remote, unencrypted desktop PC folder.
64-Bit Support: SyncToy now has a native 64-bit build (x64 only) for 64-bit versions of Windows.
Folder pair rename
Sub-folder Exclusion Enhancements: Descendents created under excluded sub-folders are automatically excluded. Usability improvements for the sub-folder exclusion dialog.
Folder Pair Metadata Moved: Folder pair metadata removed from My Documents to resolve any issues with server-based folder pair re-direction setup.
Setup Improvements: Integrated setup with single self-extracting archive file and no extra downloads if you already have .NET Framework 2.0 installed. Enabled silent install for the SyncToy Installer file. Removed combine and subscribe actions.
Removed combine and subscribe actions