Sample

-- Creates two LuaCOM objects for the same COM object
-- (a running instance of Microsoft Word(R)  )

word1 = luacom.GetObject("Word.Application")
word2 = luacom.GetObject("Word.Application")

-- These two userdata should be the same
unk1 = luacom.GetIUnknown(word1)
unk2 = luacom.GetIUnknown(word2)

assert(unk1 == unk2)