How to create Multi Location Software in c# win application

Question

Hi

I want to develop a software in C# which need to be install on multiple location. Is it possible for me to develop in C# winform and ms sql server.
Does Web based is the only solution. Else what should be the design for accessing DB from different location.
I get the static ip already but i don't know how to configure static ip for customer pc and how to access it in connection string. if anybody knows the solutions pls explain the step-by-step.
thanks in advance.