And i try to play with Jamp but when i press play, the game open Star wars Jedi accademy multiplayer instead movie battles
Those are two different issues =/
If you want to switch engine to MBII Client, go here:
Windows technical FAQ/troubleshooting guide and scroll to "Issue: Cannot switch engine from "JAMP" to "MBII Client". Combobox is grayed."
If you want to play using JAMP, right-click on "Jedi Academy" => Properties => Security => give yourself all possible permissions, including all subfolders.
Delete files "cgamex86.dll", "jampgamex86.dll", "uix86.dll" from these folders:
- Jedi Academy\GameData
- Jedi Academy\GameData\base
- Jedi Academy\GameData\MBII
Start MBII Launcher, click Play.
What happens now? Did file uix86.dll have appear in "Jedi Academy\GameData\MBII"?