Data Folder Sync:   * Sync 2 WinPIM Data Folders * Sync Laptop and Desktop Computers * Sync data via LAN or Internet * Sync Contacts, Appointments, Tasks, Diaries, Notes and Emails. * Support Sync Selected Items 　 To use, in WinPIM, click Sync menu, select Data Folder Sync.

What does Data Sync means? Data Sync means let both sides data keeps same and up to date. When one side add, modify or remove data, the changes will also be taken place on the other side after the Sync operation. Even changes were happened on every side, the data will also be same after the Sync.