These days most of the installers are coming with a small setup files and need the internet connection to download the full setup file every time you need to run it.
With these kind of installers it is not possible to use it on multiple computes which are not connected to internet.But, luckily we have a lot of offline installers available which will solve these kind of problems. 
Here we have found out one such offline installer for the world’s most popular free internet video call provider, Skype.