Getting wrong REG_DWORD value out of the registry

Hi, I have strange problem concerning the registry TimeZone values on XP Prof. SP2

I try to read all available TimeZones from registry. This works fine for the most entries.

But some entries have very large "Index" numbers. For the "Middle East Daylight Time" this ist 2147483713. This is the value I can see in the registry with regedit.exe.

But if I retrieve this value by the code shown below, this will be changed to the negative number -2147483583.

Does anyone have an idea how I can get the correct values from this entry? .. For the entries with low values it works fine.



        private void getTimeZonesFromRegistry()
        {
            TimeZoneClass tempTZ;

            RegistryKey rk = Registry.LocalMachine.OpenSubKey("SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Time Zones");

            string[] timeZones = rk.GetSubKeyNames();

            _allTimeZones = new TimeZoneClass[timeZones.Length];

            for (int i = 0; i < timeZones.Length; i++)
            {
                RegistryKey sk = rk.OpenSubKey(timeZones[i]);

                tempTZ = new TimeZoneClass();
                tempTZ.RegKeyName = timeZones[i];
                tempTZ.Display = (string) sk.GetValue("Display", "");
                tempTZ.StandardName = (string) sk.GetValue("Std", "");
                tempTZ.DayLightSavingName = (string) sk.GetValue("Dlt", "");
                tempTZ.Index = Convert.ToInt32(sk.GetValue("Index"));
                _allTimeZones[i] = tempTZ;

                sk.Close();
            }
            rk.Close();
            gridControl1.DataSource = _allTimeZones;
        }Start Free Trial