Backup Folder To LAN

I got a couple of PC on a LAN, and I would like to make a copy/backup a folder's content to another PC folder on a single click 1) It should work on XP Pro 2)All folder is encrypted with EFS(source and destination) 3)It should only backup a copy if it does not exist(already backup earlier) 4)User could set the IP of the destination PC 5)User could browse for the folder of the destination folder ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Exclusive and complete copyrights to all work purchased. (No GPL, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site). ## Platform Must work on XP Pro VB6 is recommended