Skype has a standalone installer (which works even if you are offline).
Download Skype offline installer and double click it to begin setup.
You will be prompted with a UAC warning, click Accept.
The next few steps would involve simply clicking ‘Next’ a few times – there is nothing to tweak (unless you want to install your programs in a partition other than C:\).
In the second step, make sure you leave the checkbox empty for “Yes, I want to install Browser Highlighter”.
You would not even find it interesting unless you’re a power user.
Skype should now be installed and ready to use thanks to our standalone installer. This was tested on a Windows Vista system, although It should work on Windows XP and Windows 7 too – leave a comment if you find any problems while using the offline installer. Using this also allows you to install Skype on multiple computers without having to download the online Skype setup file multiple times – saving bandwidth. This link above will always point to the latest full setup file that does not require internet connection to install, so you can pass this link to your friends etc.