New to Partitioning....

Hey everyone.. I'm new to this stuff and want to know what type of partition i need to create to multiboot... I want to be able to run either xp or windows 7... I know how touse the command prompt to be able to create a partition but i don't know what type of partition to use.. Do I make an EFI partition or another primary or what? Any help here would be appreciated... Thanks

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