[This is preliminary documentation and subject to change.]
A record reminder is a task set in Task Scheduler that at a specific time starts an application that controls a VCR or similiar device to record a show. Record reminders are set in the same manner as show reminders save for a few additional steps. These are listed below:
HKLM\Software\Microsoft\TV Services\Explorer\
StartRecordingApp specifies the application that should be run before recording starts, and EndRecordingApp specifies the application that should be run after recording is complete. These values may specify the same application if it implements both starting and ending functionality.
Tvwakeup.exe automatically looks for these registry keys. If they exist, Tvwakeup.exe runs the helper applications at the appropriate times. If you are using a custom application to handle record reminders, it should implement this functionality.
For more information about the helper applications specfied in StartRecordingApp and EndRecordingApp, see Record Reminder Helper Applications.
Note The TASK_FLAG_SYSTEM_REQUIRED flag should not be set for standard show reminders. Version 1.0 of Broadcast Architecture does not support standard show reminders that go off while the system is sleeping.