Timezones are displayed incorrectly.
MS KB2443685 was created to resolve issues caused by revised daylight saving time and time zone laws in several countries.
Having this update installed breaks vWorkspace Timezones.
vWorkspace Timezones was created to address the issue of timezones in versions of Windows 2003 SP1 and older.
Microsoft enabled the ability to control timezones via GPO in Windows 2003 SP2 and newer (EG Windows 2008 etc).
Please use the Microsoft method for controling timezones with GPOs.