There is NO reason why it shouldn't work on a netbook. I have run it from a Compact flash card, DVD, and from my HDD drive. I think it needs to be run from the HDD in order to save things. Internet is not required. I may be purchasing used netbook or a refurbished Panasonic Military spec Toughbook. The only reason I'm running it on my PC is to familiarize myself with it, and I don't own a laptop. I'm impressed by what it does for the little bit I spent, and it takes a lot to impress grumpy old men. The Laptop will be the biggest expense, but it's not tied to the boat. The hardest thing I had to do, to geek this along, was enter hardware manager and see what port the GPS USB was hooked to. This info had to be entered in the SeaClear program. Even an old slug like me had it up and running in 5 minutes. I think the DVD contains over 4 gigs of data. When I load it to a laptop I'll only load the charts I may use. I also backed up the DVD. If you want to try it I can bring you a copy.