I would like to know if it's possible to collect appointment's information just using the EntryId. In fact, I can collect all information in the addin, but I would like to open a winform for the user choose other information, and in this form I pass in paramater the EntryId. So in this form, I would like to collect again the appointment's information with this EntryId (or other) like the subject, the recipient ... as it was possible in my addin with this code :
Code Snippet
Object selObject = this.Application.ActiveExplorer().Selection[1];
Outlook.AppointmentItem apptItem = (selObject as Outlook.AppointmentItem);
appItem.Subject;
....
Thank you for your help