Microsoft’s DST patch for Windows 2000 does not work as advertised

Early this Monday morning, we have come to the sad realization that Microsoft’s supposed tzedit tool did not do what it was supposed on the Windows 2000 server and workstations, thus keeping the time as as it was before DST went into effect. We found a fix, which requires manually changing the timezone to something else, and then changing it back, but this involves a manual method which is time consuming. Anyone else care to share their pains this Monday morning with certain systems not rolling over properly?