C# Desktop with Database over Internert

Question

Hye All.

I am Looking forward to develop an Management System for a Client.

Client need a Desktop Application with database file stored locally on same computer. but also want to have the full copy of database over internet for back-up and other usage purposes. want to update db from desktop application by connecting to internet,

want two way communication (updating at internet daily or weekly... and update local database when needed)

all in .NET framework.

my question is that is it possible to build that application ???? Desktop Application With Local And Internet Database Connected(for updating each other)?

does the .NET desktop application API provide this feature? if yes I would like to get details on that?

thanx in advance :)