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I have windows xp with explorer 5.1 with sp2. Do I need
explorer 6.0
or what is the best explorer for xp.
Almost certainly the above isn't correct. You have Windows XP
SP2, which is also known as Windows NT 5.1. You have Internet
Explorer 6.0, which is the version that comes with Windows XP.
To check this, in IE, go to Help | About, and see what it says.