How to install Github for Windows offline?

Question

As the question says how to install Github for Windows without an internet connection? If it is not possible then is there some alternative client with the following features:<

Answer 1

This is the answer I received from the support today (2015-06-30):

Unfortunately we do not have a standalone installer at this time. GitHub for Windows makes use of Microsoft's ClickOnce technology for installation and updates.

We are currently working on an open source replacement for ClickOnce here:

https://github.com/squirrel/squirrel.windows

Once that technology is complete and ready for use, we hope to switch GitHub for Windows to use that. It would allow for a standalone installer.

In the meantime, you can find a list of alternate GUIs available here:

http://git-scm.com/downloads/guis