Addons multiplayer trouble

Hi, me and my friend both have add ons we want to use but only one of us, the one hosting, can use the add ons. if someone could tell me how to make him have the power to use add ons that would be amaziing with sprinkles on top :smiley:

with love, yo mom(zombiepig23) :smiley:

[editline]26th November 2011[/editline]

comon i need fast answers :open_mouth: