We have a Cirix Thin Client network, all running of window server 2003 and one exchange 2003 server.
I have been having lots of calls about the appointments in outlook calendars being one hour out when they where added within the last month. The exchange DST update was applied and all new appointments entered appear at the correct time now, but most of the older apointments that were entered before the update have still got the wrong times.
I have also tried using the outlook TZD update tool to see if I could at least rectify one outlook calender, but to no avail.
Is there anything I can do to make the appointments change to the correct time ?
I've read so many Microsoft help and support pages on these updates tools, to the point that I am more confused than when I started.