I can confirm that Synctoy is compatible with Windows 7 and is available in x86 and x64 native versions.

If you require something free that is a little more sophisticated have a look at GFI Backup which has a synchronizing module in addition to the backup

GFI - Fax server, Exchange anti-virus, anti-spam, vulnerability management and email archiving software - the home version is free to use for non commercial use - it has it's own scheduler that can run sync at start-up / shutdown or other timed periods but is also fully compatible with the Built-in task scheduler