The short answer is:
Yes, you can!
Provided that you have a web server capable of running .net and a database server there are no problems running n-gen.net in a confined environment.
However, there are some caveats you should be aware of.
- You cannot use the online installer. But you do not really need the online installer for anything else that the installation,
- You will have to configure your database connection file (web.config) manually,
- You will not be able to download any updates for files or your database. And you will not be able to download new files.
If you find yourself in a situation where you want to run n-gen.net CMS in an offline environment we strongly recommend that you write us a mail.