WC3 viewer and MDX/MDL converter work for sure.
I think Magos Model Editor and 3dsMax work as well.
Of JNPG and MDX Panther I'm not sure.
EDIT:
Just seen it


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Mooglefrooglian is right. Don't trust what everyone says about Vista. I've been using it for about 10 months and I've encountered few problems, mostly with old apps. I can even run Baldur's Gate I and Age of Empires I with no errors, better than some XP machines.