Tor

[URL]
Google: Tor

[Need Installation?]
YES

[Can be Greened?]
YES
but you can use the software: "portable tor" just download the self-extract executalb efile and extract to any dir. and you can move whenver you want.
but i still suggest does not run tor on a flash usb. when i run, the usb seems to be slower. maybe try it on a movable harddisk

[RunTime]
Writes settings to: Application folder

[?]
Port(Socks): 127.0.0.1:9050
Port(HTTP): 127.0.0.1:8118
ZoneAlarm->Program Control->Programs->Access: Allow
Settings
Application Data\Tor\torrc
Vidalia->高级->控制端口
Problem
Change Port
Restart

[Portable Support]
extract using 7-zip or simulate by sandboeie. note uncheck torbutton, shortcuts and autorun during installation. comare, we'll find the latter is better

now, there are 3 dirs: tor, vidalia and privoxy.
vidalia will call tor. but you need modify the tor executable path: run vidalia, right click the system tray, click settings... then modify the tor path. there also can choose whether to: allow vidalia autorun / allow it to call tor. click the save big button to save settings. also see the advanced button

also see:
http://swik.net/Tor+PortableApps
http://swik.net/Tor+USB
http://portableapps.com/node/363
http://www.portablefreeware.com/?id=1088