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Old 04-23-2006, 04:58 AM   #2
KaVir
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Join Date: Apr 2002
Name: Richard
Home MUD: God Wars II
Posts: 2,052
KaVir will become famous soon enoughKaVir will become famous soon enough
Simple - copyright doesn't protect ideas. Diku and LP both took ideas from AberMUD, but ideas aren't protected by copyright and so there was no problem. On the other hand, Merc actually based itself on the Diku code, and is therefore a derivative work.

Software can also be patented in some countries.
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