It was Lord of the Rings, the second one, can't remember the subtitle though. I also have the first Lord of the Rings, bought ages ago for my grandson. He didn't continue it since he was much younger and it scared him. Now nothing scares him but I don't know if it plays on XP or Vista.
Grandson tried the controls on the one Drac mentioned, he didn't like it either.
I still haven't finished Hobbit, I got stuck with the platforms, can't get to the door in time, then I got distracted by Goo and now Machinarium.
I will try again soon, probably when I get stuck with something else.
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What kind of magic spell to use?