X on a USB Disk under Windows

[Leonid Grinberg <lgrinberg@gmail.com>]

Hello,

I have a somewhat unique situation.

You see, I have a fairly large USB Disk (512 MB), on which I placed
PuTTY. Then when I am at school (which uses crappy Windows XP), I
simply plug in the USB drive, fire up PuTTY and SSH into my Debian
"Testing" server at home.

This is all well, except for just recently, I learned of the wonders
of X11 Forwarding. I set it up within my home Debian network and it
works fine, but I would like to know how to set up X11 Forwarding
between Windows and Debian. This in itself is not unique because all I
would normally have to do is install something like Cygwin/X, and I
would be all set. But in this case, I cannot do that because we are
not allowed to install anything on the school computers. If I keep it
on my USB disk, I am fine.

And that brings me to my question. Is it possible to install something
like Cigwin/X on a USB Disk and then use it for X11 Forwarding under
PuTTY? I would very much love to do this because then I could pretty
much do anything without being constrained by obnoxious web blockers,
and filters (the school blocks nearly everything on port 80 that it
doesn't know what it is).

Thanks for any help,
Leonid