0x80040115 when trying to retrieve PR_DISPLAY_NAME

My native raw C++ program uses MAPI to traverse the tree in the Exchange Server.

Sometimes when I call HrGetOneProp() on a IMAPIFolder* pointer to retrieve PR_DISPLAY_NAME it fails with HRESULT 0x80040115. It only happens for one particular folder, all other folders names are retrieved allright.

Outlook 2003 runni开发者_Python百科ng on the same machine under the same user displays all folders, problematic one included.

What is the cause of the problem and how do I resolve it?

0x80040115 is MAPI_E_NETWORK_ERROR. The folder could be a shared folder from another inbox, and you cannot connect to it. Outlook may still display it properly because it cached the name somewhere.