Final Windows 2000 Update
Ant writes "An article on eWeek discusses Microsofts plans to ship a Windows 2000 Update Rollup, the final security patch for the 5-year-old operating system. The Update Rollup, which replaces Windows 2000 SP5 (Service Pack 5), is a cumulative set of hot fixes, security patches and critical updates packaged together for easy deployment. The Update Rollup will contain all security-related updates produced for Windows 2000 between the time SP4 was released and the date the update ships. It will also feature a small number of important, non-security updates. The Update Rollup comes just one month before mainstream support for Windows 2000 client and server releases expires on June 30."
http://marc.theaimsgroup.com/?l=patchmanagement&m= 111773947308242&w=2
Eric from Shavlik, produced many counterpoints to this article by eWeek. It is not the final update for Windows 2000 - security updates will be released for it long after this roll-up.
Windows 2000 does move into Extended Support on June 30, but that doesn't mean they suddenly stop supplying security patches as this summary seems to claim (though, yes, it will probably be the last "Serivce Pack"-ish upgrade.)
The primary difference between mainstream and extended support is that "Microsoft will not accept requests for warranty support, design changes, or new features during the Extended support phase." Security updates will continue to be provided until 2010, the "end of life" for Windows 2000.
R.Mo
If W2000 works for you, nothing. Extended support (security hotfixes) for W2000 doesn't end until March 2010.