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with Norton cnavextbho , winxp closes IE8
W/ winxp sp3, data execution prevention closes win IE8 on startup. Ran NS full scan, Maleware, & Win malicious software removal w/ no threats found. IE8 runs in safemode or w/ add on's off. W/ "cnavextbho class" add on disabled, IE8 runs. It's a "browser helper object" & part of N antivirus. What does cnavextbho do? Can I run without it? Better solution? Initially w/ cnav...disabled, Live Update gave 3048,3 error. After restart, gone. Foxfire ok w/ cnav.. enabled.