I think I paid for the upgrade to ExpanDrive3, and got an email from Jeff telling me I hadn't needed to do that, and wondering if I would take a refund. I told him he deserved to keep the money. I love ExpanDrive and StrongSpace, and even though I have lifetime "free", I'm more than willing to chip in a bit now and again to keep the services running. I also bought a Mac License, which I did need to do, for some reason. So, I'm pretty sure I can install ExpanDrive on all my windoz boxes with the one license, but need an additional one for the elderly macBook my daughter gave me.