Hello there..

I don't know if I'm in the right section but I would like to ask a few questions about remote servers.If I want to link to my company computer via a remote server,is there free programs that I can use to set up a network?

Which program is the best to use between hamatchi and WallCooler?

Well if I want to use Windows Remote server to connect to another computer,what do I need?I'm sure I'll only need the ip address?

Well if its possible,can you please e-mail me which steps to take,to set up a remote server connection?

is there free programs that i can use to set up a network
I didn't understand most of your post, haven't used Hamachi, and am unfamiliar Wallcooler. Only Wallcooler looks to be free for home connecting to work use unless you're a non-profit 501(c)(3).

If you're trying to connect to one of your company's desktops or servers from home or elsewhere via Windows Remote Desktop or VNC (http://www.realvnc.com/) clients, I've used the following methods:
1. Not Free $$$ - Hardware VPN in router at each end (company and home).
2. Not Free $$ - Hardware VPN in router at one end (company) and a software VPN client at other end (home).
3. Software Free - Software remote access gateway server running copSSH (http://www.itefix.no/i2/node/27) (company) and a software SSH client (PUTTY (http://www.chiark.greenend.org.uk/~sgtatham/putty/)) on other end (home). A Windows Remote Desktop connection is then tunneled through the secure SSH connection to any computer the gateway server can see. (See Remote Desktop and SSH for the home user. (http://theillustratednetwork.mvps.org/Ssh/RemoteDesktopSSH.html)) While probably more complex than LogMeIn/Hamachi arrangements, data transmission is not dependent on a 3rd party middleman and doesn't require installation of software on the target machine.

If you had something else in mind, post back. I hope the network gurus have additional thoughts (hint hint).

You can check out this article on how to do Remote Desktop Connection from Internet (http://www.home-network-help.com/remote-desktop-connection.html), not difficult to do it..

Before you access a corporate network from home you NEED to check with your network admins. There may be requirements and restrictions on doing so. You could be compromising network data or risking your job.