SugarSync 1.1.11
Requires online account (no free account available)
120 x 95 screengrab Tool that you can use to automatically backup and synchronise your files between different computers. If you edit a document at work, on your Windows PC, get home and find that the document appears on your Mac, via automatic synchronisation across the Internet.

Requires: Windows XP or Vista

Dropbox 0.6.402
Requires online account (free 2GB account available)
120 x 95 screengrab Online sharing tool that enables you to select the files you want to share and synchronise with other users, then simply upload them to the remote site. That bit is done automatically, so you donÆt need to worry about having to upload the files manually. Sshare folders and collaborate with other users.

Requires: Windows XP or Vista

Microsoft FolderShare 14.0.1
Freeware
120 x 95 screengrab Peer-to-peer service that lets you share files and folders on your PC. It is easy to use and offers industrial-strength security control. You can choose whether individual users - added at your invitation - access rights, and you can add and remove people or change their settings at will.

Requires: Windows XP or Vista

Syncplicity 2.0.3134
Requires online account (free 2GB account available)
120 x 95 screengrab Share and synchronise files with other users. Simply right-click on the folders you want to share and insert the information of the user(s) that you want to access the folder and contents. This might be useful for sharing project documentation between different developers, located in various locations through the world.

Requires: Windows XP or Vista

Microsoft SyncToy 2.0
Freeware
120 x 95 screengrab 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. Combine files from two folders in one case, and mimic renames and deletes in another case.

Requires: Windows XP or Vista

Allway Sync 8.3.1
Trial Software
120 x 95 screengrab Saves the work of checking the dates of files and can use a USB to keep files synchronised between two computers. Setting up is simple; all that is required is to select the two folders that will be kept up to date. An analysis is made of the changes that have occurred and the changes are made after this.

Requires: Windows 2000, XP or Vista

webroot