Actually i read for people in the usa that its legal to do this if it is the only way for it to run on your pc. i read this on the dmca info page on the .gov site (dont remember if it was for the justice or congress.
I can read that. But Windows related knowledge is good for other people who are in this situation that are using Windows.
And, just a thought, but could you not make a copy of the disc? If I remember correctly the disc is ~5.5GB of information, so a dual layer dvd would do that trick. If you don't have one, you could always make a disc image of it, and use DTLite or some other disc image software to read the disc.
Just a thought.