I need to be able to give one Windows 7 computer access over the Internet to another one, that is behind a router. I don't mind setting up any required port forwarding.
What needs to work is access from the first one to the 2nd one using Windows shares, like \\computername\sharename, and other access to that computername e.g. to access a SQL server (Firebird) through a passed-through port on that 2nd computer.
I've looked at Comodo Unite and LogmeIn Hamachi but neither one seems to support that use case, as far as I could determine.