L2J Server

Anyone please give me link download Unreal Engine 2 Editor.
I have searched it on Google and have no downloadable link.
I need it to learn how to modify skill in Lineage 2.

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6. Note that L2J is a legal game server emulator.
In order to keep it in this way, we DO NOT support any client modding or distribution of stolen/illegal server files or any copyrighted material. Do not ask/post/PM anything related to this.