Sometimes, you need to connect from Windows to a Unix or Linux system just to run a specific software. For example, if you want to run some Linux open source program under windows and you have a Linux machine in your network or accessible from the Internet, there is an easy way to do it: Xming.
Xming is a open source X server that runs under windows, easy to install and use. Just go to the homepage: http://freedesktop.org/wiki/Xming.
The installation is pretty forward. Once installed, the easiest way to use is to run it straight away. You have an X icon on your windows desktop, run it.
Then you need a remote terminal connection software, the best open source is Putty.
It is an executable, just download it and lunch it. Depending from the remote terminal service that is running on your server, configure Putty to use it. I suggest OpenSSH. You have also to configure the X11 Forwarding setting in Putty to forward the X session to your windows machine IP address. Done.
You will get a console, login in on your Linux server and lunch the application you want. Magically, it will appear on your windows desktop. I use this method to run application like Kivio (no need to buy Visio ) or other good open source that I will mention in other articles, on my office notebook when I am at home. The server is my Linux machine.
I repeat the instruction:
1) Install under Windows Xming and Putty
2) Have a terminal server running under Linux, like OpenSSH
3) Execute Xming under windows: double click the X icon
4) Execute Putty: configure it to connect your server Ip and to forward the X11 to your Windows machine IP.
5) Login and run the Linux application.
Here the website where you can find this and other usefull article: http://ubuntufriends.wordpress.com/