As I understand it, you are pretty safe. It's not *you* accessing the content.

The Tor guys recommend you have a web server on the machine which says "This is a Tor relay", presumably so that anyone who finds your machine during an investigation will know what is going on.

Two experiences of running a tor exit relay. One good, one less good:-

http://blog.torproject.org/blog/five-years-exit-node-operator

http://calumog.wordpress.com/2009/03/18/why-you-need-balls-of-steel-to-operate-a-tor-exit-node/#comment-2

Good call. I was about to suggest this myself.

I have used MP3FS and it worked perfectly.

It's *the* ideal solution for people like me who like to have high quality audio on their computer but are limited to MP3 on their MP3 player.

MS can simply put the wav file inside a system DLL file.
Keep the DLL file in use so that it cannot be edited.

Windows XP will warn you when system files have been changed (patched) and offer to revert back to the original version so it's clearly not a problem for Windows to detect changes and act accordingly.

Also, MS could scare customers by not providing updates for unofficially patched Windows installations.

I'm sure there are more things they can do if they want to be awkward about it.