If you don't know what to do then
1.Burn the "Harry Potter 5.iso" file with a program like Daemon Tools
2.Use the serial code while installing (obvious)
3.After installing , go to the crack folder and copy the "Hp" file
4.Go to the harry potter game file , preferably in "Program files > EA > HARRY POTTER..."
5.Paste the crack in the folder , replace , and create a shortcut
6.Run and Enjoy =)
Seed Please =)