How To: Silverlight Tools Offline Installation
I had to figure out a way to get the installation done on my development machine which unfortunately doesn't have internet connection to it. So here's how to install Silverlight tools offline if you are in a situation like mine...
Get to a system that has internet connection and go into the directory where you have saved the Silverlight_Tools.exe and run the following command.
Silverlight_Tools.exe /createlayout
This will extract all the files and save it within the folder you specified... After that is done double-click SPInstaller.exe from the extracted files directory and that's it we are good to go ....
Another advantage of running this is, now you can copy this folder and use it to install silverlight tools on your other machines that dont have internet connection as well.
There are some other ways of performing the installation offline like downloading the individual components separately and then storing them in the %temp% directory and then run the silverlight_tools.exe ... But I find the first method far easier... Actually I am not entirely sure if you need to store it within the %temp% folder at the first place... so why take chances :-)
Hope this helps...