Carbon Copy is a cross-platform backup tool written purely using the .NETframework, which has a user-friendly GUI interface, and allows either for incremental or synchronized backups from source location(s) to a destination location.
The sourcecode is hosted at github:
https://github.com/jez9999/gooeycarboncopy
fileSync is an application designed for file and directory synchronization. It is coded in C#, and built on the .NETFramework version 1.1. At the core of fileSync, is a modular engine, which is implemented as a library, and can be used in other project