Slicksync Yahoo Messenger Synchronizer Pro - Version 1.0 Slicksync Yahoo Messenger Synchronizer Pro is an application designed to help automate the synchronization of your Yahoo Messenger message and chat archives. Slicksync provides an easy to use wizard interface which will guide you through synchronizing your data to a local, network or removable drive. Synchronizations are performed one-way and will update your destination files when needed but will not modify your source files. This program