Edit: Thanks for the answers; please just clarify-do I have to download a fresh copy of the software and drag the icon to the external drive rather than my applications folder? I just bought a new MBA, and I want to install 2 downloaded pieces of software: iGTD (free) and Scrivener (paid but free trial). I use mobile broadband but the dongle won't fit in the USB port of the MBA, and I don't need internet access on it for anything else at the moment, so I don't want to have to buy any extra equipment. Is there any way I can save these two pieces of software to a USB flashdrive or external hard drive and install them on the MBA from there? If so, how do I do it? And if I can install the free trial of Scrivener on my MBA, then buy the license from a different computer, can I then use that license code to get the full software on my MBA without internet access? I know there are lots of questions there, but please help me!