Quote:
So in order to see anything on the connected (windows) computer, you need to enable sharing. Let's say that I only enable one folder on my computer to 'sharing'. How easy would it be for someone that had Hamachi, that I gave my Hamachi Network password to, to break through that 'shared' folder and get into the rest of my system? Basically I'm asking if Windows file sharing is secure so I can give someone access to one folder on my computer to transfer one file and then unshare that folder and I want to make sure that they can't break into my system.

Is that possible for someone to do?

ithoughti, all that Hammachi does is create a VPN, so all members of that VPN will see each other as in a regular LAN. Hamachi creates a virtual ethernet card on your PC, with its own IP configuration.
So, all that applies to Windows in a LAN, will apply to Windows in a VPN via Hamachi.
Shared folders will be seen by others as long as the share permissions (weak) are such to grand access to them . Next, file system permissions (strong) will also define who has access, and what kind of access they have, to the content of the shares. Be very careful with this. Depending on permissions, people in your Hamachi VPN may have access to your local files.

Practical example: if you (5.10.10.1) and a friend of yours (5.10.10.2) are in the same VPN via hamachi, you can simply browse your friend's computer and shares by typing "\\5.10.10.2" <ENTER> at the "run" box (start->run). It's just as easy (because it's just a LAN, as a matter of fact).

I've been using hamachi in the last couple of months for "lanparties" among friends of different cities, and it usually works well. I see performances drop depending on bandwidth, of course, and some times depending on.... something that I believe is related to Hamachi servers themselves.

Fist times I saw a VPN work so easily I was really excited. Overall, I'm quite happy with Hamachi!