Here are some really important things for you to know before you start. The definitive guide to setting up and using LogMeIn Hamachi can be found on the LogMeIn web site. This guide has been written to help QuickBooks for Mac users use LogMeIn Hamachi to solve the problem of accessing QuickBooks for Mac data in multiuser mode across a wide area network (WAN). This means that more than one computer can access your QuickBooks file in multiuser mode. All of the computers inside the VPN will be able to see one another as if they were all on the same local area network (LAN). LogMeIn Hamachi is an application and service that allows you to easily set up a virtual private network (VPN) between Macs. There’s a solution! It’s called LogMeIn Hamachi. Have you ever wanted to give your bookkeeper or accountant access to your QuickBooks file while you’re still using it? Maybe you want to be able to work on QuickBooks while you’re away from the office.