C# Outlook VSTO add-in error while trying to get item in an Exchange setup
问题 I'm developing an Office VSTO add-in in C# which looks up calendar appointments in Outlook, and reads/writes some data in them. Recently, one of the clients had issues with the add-in, namely they can't read/write the calendar appointment, and it throws an exception : The operation failed. There's not much info from the exception log, but I suspect they have synchronization problems with Exchange. I asked the client, and they said, that they also have a random popup in Outlook as well, which