Reading Outlook messages offline programatically

Hi
I wanted to read the outlook 2k offline (.pst file) and store the mails in the database. Can any one give me a hint or some code which tells how to open a .pst file. I am using C# now.
Note: I am able to do it using Namespace.Addstore of pst file name, i am not looking for this solution, just read the .pst file directly w'out opening the outlook.