Microsoft Outlook 2007 stores a wide variety of data for you, including calendars, contacts and tasks. It stores this information in a PST file, which contains the user’s calendar entries, messaging data and other information. If you want multiple users to access the same PST file, you run the risk of corrupting the file and losing data. However, there are ways to share data and synchronize it with the Microsoft Exchange server. You can let users use OST files, which are offline versions of the PST file, or you can copy a PST file and use the copies on multiple computers. If you use this method, you need to repeat it to keep the copies synchronized. Writer Bio
