How to read .OST file with c#.Net

Question

 

PST/OST file integration with C# Issue
Posted on: 08 Oct 2014
I am using Microsoft.Office.Interop.Outlook Version 12.0.0.0 to read my outlook pst file but when compiler reaches this code outlookNs.AddStore(pstFilePath); it gives exception that “The Outlook data file (.pst) failed to load for this session.” i have triedoutlookNs.AddStoreEx(pstFilePath); also but the error was same ….any sugession ??

NOT ABLE TO READ PST/OST FILE THROUGH C#

Here I pass PST File Path & Name
IEnumerable mailItems = readPst(strSource[0].ToString(), strSource[1].ToString());

Here is the Method
private static IEnumerable readPst(string pstFilePath, string pstName)
{
List mailItems = new List();
try
{
Microsoft.Office.Interop.Outlook.Application app = new Microsoft.Office.Interop.Outlook.Application();
NameSpace outlookNs = app.GetNamespace("MAPI");
// Add PST file (Outlook Data File) to Default Profile
outlookNs.AddStore(pstFilePath);
MAPIFolder rootFolder = outlookNs.Stores[pstName].GetRootFolder();
// Traverse through all folders in the PST file
// TODO: This is not recursive, refactor
Folders subFolders = rootFolder.Folders;
foreach (Folder folder in subFolders)
{
if (folder.Name == "Inbox")
{
Items items = folder.Items;
foreach (object item in items)
{
if (item is MailItem)
{
MailItem mailItem = item as MailItem;
mailItems.Add(mailItem);
}
}
}
}
// Remove PST file from Default Profile
//outlookNs.RemoveStore(rootFolder);
progressMaxVal =(int) mailItems.Count;
}
catch (System.Exception ex)
{
}
return mailItems;
}