>The best on it, it's pure academic over here. At least in gerrmany we have the right to fix any software ourself, or engage a contractor, if the original manufactor is not doing this job. This is basic. So if in doubt, where is the problem to order Chen to do the work?

I think that's how all software should be. But until it is (in the U.S.) we have an obligation to obey copyright law.

>OTOH, would I ask a possible opponent for legal advice? The idea is strange to me. :)

Who is the opponent in this scenario?