PuTTY Portable is the popular PuTTY telnet and SSH client packaged as a portable app, so you can connect in to your systems on the go. You can place it on your USB flash drive, iPod, portable hard drive or a CD and use it on any computer, without leaving any personal information behind. PuTTY Portable ScreenshotPuTTY is a lightweight telnet and SSH client for Windows, along with an xterm terminal emulator. It allows you to securely connect to your systems while on the go.