This is happening to Urs Wiggli and Robert Wahlström. It appears to be a registry security issue during initialization of the License object:
mscorlib.dll!System.ThrowHelper.ThrowSecurityExcep tion(System.ExceptionResource resource) Unknown
mscorlib.dll!Microsoft.Win32.RegistryKey.OpenSubKey(string name, bool writable) Unknown
Profile.dll!DC3.Profile.Registry.GetSubKey(string section, bool create) Unknown
Profile.dll!DC3.Profile.Registry.GetValue(string section, string entry) Unknown
Profile.dll!DC3.Profile.Profile.GetValue(string section, string entry, string defaultValue) Unknown
Scheduler.exe!DC3.Scheduler.License.Initialize() Unknown
Scheduler.exe!DC3.Scheduler.License.Valid.get() Unknown
Scheduler.exe!DC3.Scheduler.MainForm.Main(string[] args) Unknown
