Interesting, might be the reason others have been having problems with the Royal Edition, here's a translation from Google:
after I install the game on my laptop at about 15 tests could not, because not launched AUTORUN / SETUP.EXE could not be started, the support has informed me a possible solution that might help one or the other of you. For this, a big thank you to firstname.lastname@example.org!
Condition for the solution is that you'll ever see the DVD data (and therefore read) can, for example with the Win-Explorer. If so, try the following:
1. Create a directory on the hard disk "Two Worlds II".
2. With the Explorer / Win Commander / Whatever always copy the entire DVD content there.
3. In "Two Worlds II" directory on your hard disk, the two autorun.exe "and" AUTORUN.INF "Delete.
4. SETUP.EXE. (Possibly as an administrator)
Previously, I thought my DVD was defective, but after deleting the two AUTORUN ... Voila! Suddenly it worked.