What I want?
I need to retrieve the list of all the NavigationGroups (called as 'Folder groups' by outlook users) belongs to outlook tasks (highlighted in attached picture).
What I did so far:
I found several examples which has implemented with COM objects. In my case, I need to do the same with EWS. Unfortunately I could not find any clue from either MSDN or any related forums. So, I doubt that EWS does not support this feature.
Am I correct? If not please enlighten me