WEB BROWSERS

AOL (AOL ) wants prime placement within Windows XP. Otherwise, it threatens to switch from Internet Explorer to its own Netscape Navigator. But that could alienate customers.

INSTANT MESSAGING

Microsoft (MSFT ) failed to get AOL to tie its popular IM to MSN's rival Messenger Service. Microsoft wants that tie to be a condition of the deal.

STREAMING MEDIA

Microsoft wants AOL to offer its Windows media player. That would open a huge new market--but threatens AOL's partner on that turf.

ANTITRUST LOBBYING

AOL execs continue to lobby Congress about Microsoft's alleged anticompetitive conduct. Gates & Co. want AOL to forgo any legal action.

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