Hi,
I would like to comment that EEikDialogFlagNotifyEsc is already included in EAknWaitNoteFlags. So it does not make sense to specify this twice in the .rss file. See avkon.hrh:
BR,
Rene
This article provides code example to show progress and wait notes. Progress and wait notes can be very useful to notify the user on how much more time the processing will take up or to notify that the application is busy with some work and user has to wait. The code snippet provided can be very easily implemented in to your project.