Native .NET version of Rsync for commercial application available?

Currently we are evaluating whether it is possible to provide rsync support to an application we sell.

I d开发者_运维知识库id a Google search and found some references:

• "Native Window version of rsync" - A discussion about an implementation but without any code.
• "Has anyone wrapped the rsync algorithm in C#-callable package?" - A discussion that links to a weblog that is no longer available.

Since it is a commercial application, we want something that is not GPL licensed.

Question:

Are you aware of a package to get rsync functions for copying files, which we can ship with a commercial Windows application?

Bonus would be if the rsync functions require no extra installation on the system, just XCOPY and you're done.

There is a .Net port of rsync at github. It looks like it's only the client part.

You'll need cwRsync to install a cygwin version of the server.