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Yeah, I know this is like "David met Goliath and forgot his sling", but I would think this is a good place for a lawsuit based on pre-existing rights. Microsoft certainly had to know that the Lua language pre-existed. But they probably didn't care. I would think that the Government of Brazil would have the national interest and pride in Lua and what it is spinning-off, that it might front such a legal challenge...


----- Original Message ----- From: "Mike Pall" <>
To: <>
Sent: Saturday, April 09, 2005 7:22 AM
Subject: Name clash with Microsoft Longhorn "LUA"


Microsoft has decided to redesign the permission model in the
upcoming release of Windows (code name Longhorn). Unfortunately
they named a key part of this model "LUA":

Quoted from

 "LUA, or Least-Privilege User Account, is an acronym I'm sure
 you'll see repeated over and over in Microsoft presentations
 from now on."

It's already in the press and they even have a "Lua logo" program
(but I haven't seen the logo yet):;2025555413;fp;2;fpid;1

FWIW this will negatively impact the searchability for Lua resources
and add a lot of confusion. From now on you always have to explain
that you are talking about "Lua, the programming language" vs.
the MS LUA.

If the authors of Lua have any trademarks or other rights of the
name "Lua" in the field of computing I suggest to contact MS ASAP.