I am having the exact same issue from a post back in 2011 (link below) using Visual Basic. I am trying to retreive some FileSite specific properties in Outlook 2010. Using the following VB psudio code, I am able to get 'subject', 'messageClass', LastModificationTime, ect. These are standard Outlook properties / methods. However, I cannot seem to get any FileSite specific properties like "Author Description", Matter Number, Version, CheckIn. I would appriciate any help on this.
Dim oOutObj As Object
Set oOutObj = Outlook.ActiveExplorer.Selection.item(1)
oOutObj.Subject
oOutObj.MessageClass
oOutObj.LastModificationTime
Link form 2011 with the same issue...
/t5/Other-Marketing-Optimization/Get-selected-document-s-Imanage-number/m-p/160839/thread-id/14314/highlight/true
Thanks in advance.
KR