I found an issue in other place. Wrapper cannot get definition for some preinstalled tasks.
For example win 10 has next task "\Microsoft\Windows\CertificateServicesClient\UserTask". When I try to get task.Definition.RegistrationInfo.Description I get an error:
"{"(1,524):WnfStateChangeTrigger:"}"
with stackTrace:
at Microsoft.Win32.TaskScheduler.V2Interop.ITaskDefinition.set_XmlText(String value)
at Microsoft.Win32.TaskScheduler.Task.GetV2Definition(TaskService svc, IRegisteredTask iTask, Boolean throwError)
at Microsoft.Win32.TaskScheduler.Task.get_Definition()
For example win 10 has next task "\Microsoft\Windows\CertificateServicesClient\UserTask". When I try to get task.Definition.RegistrationInfo.Description I get an error:
"{"(1,524):WnfStateChangeTrigger:"}"
with stackTrace:
at Microsoft.Win32.TaskScheduler.V2Interop.ITaskDefinition.set_XmlText(String value)
at Microsoft.Win32.TaskScheduler.Task.GetV2Definition(TaskService svc, IRegisteredTask iTask, Boolean throwError)
at Microsoft.Win32.TaskScheduler.Task.get_Definition()