February 2014
If you want to run X applications from a remote unix system and display them on your Windows (XP,7,8) desktop, MobaXterm will work nicely for you.
MobaXterm is public domain free software and unlike other most X-window applications for Windows available, it is easy to install and easy to use. It's better than Putty since it allows the displaying of X applications (running remotely) on a local Windows desktop.
Mobaterm has a user-friendly graphical intertface with SCP/SFTP clients (for file transfer) built-in. It requires no configuration. Just install and run.
You can find the download and instructions at: http://mobaxterm.mobatek.net/