Hamachi doesn't only limit the amount of players u can have, its also very unsafe. Don't put any important folders or documents in your shared folders through LAN.
Click on the link on top to view it.
[ame=http://www.youtube.com/watch?v=ENbNz9X4_LE]YouTube - Netbios Hacking ( Hacked By WTC.LeGeND )[/ame]
I've done it before it's been tested.
nbtstat -a HAMACHIIP
net view HAmACHIIP
net use K: \\HAMACHIIP\Share
If you already use K: Then use a driver that you are not using.