Article ID: 195435 - View products that this article applies to.
This article was previously published under Q195435
This article has been archived. It is offered "as is" and will no longer be updated.
For a Microsoft Outlook 97 version of this article, see 161725
For a Microsoft Outlook 98 version of this article, see 182158
For a Microsoft Outlook 2002 version of this article, see 286038NOTE: The procedures in this article only apply if you have installed Outlook with the Corporate or Workgroup option. With this option, you can use Messaging Application Programming Interface (MAPI) services. To determine your installation type, click About Microsoft Outlook on the Help menu. If you have the Corporate or Workgroup installation, you see "Corporate or Workgroup".
When you use Outlook 2000 with the Microsoft Exchange Server Information Service, you can work with folders "offline;" that is, you can use the contents of a folder without a network connection. This article discusses how you can create, use, and synchronize offline folders.
Offline folders are only available with Exchange Server.
Offline folders are the quickest and easiest way to work offline with Exchange Server. Offline folders make it possible to work with the contents of an Exchange Server folder while you are not connected to the network (offline), and then when you are connected to the network, synchronize the folders.
Offline folders are stored in an offline folder (.ost) file; the default location for the .ost file is your current Windows folder. Like personal folders (.pst files), the .ost file can be compacted to save space on your computer.
The difference between an offline folder file and a set of personal folders is that the offline folder file starts as a mirror image of your folders on the Exchange Server computer, and is updated by the server during synchronization. A set of personal folders, on the other hand, is simply a local file where messages are stored. A set of personal folders, on the other hand, is simply a storage location on your hard disk or a server other than the Exchange Server computer.
When you are working offline, you work with the contents of an offline folder exactly as you do with a folder that is on a server. For example, you can change and move items in your offline Inbox, send messages that are placed in your offline Outbox, and read your offline public folders. You will continue to receive new messages in your online mailbox. However, you will not be aware of these changes on the server until you connect to the network.
When you need to update the contents of the offline folder, you synchronize the folder with the server, and then continue to work offline. The Synchronize command connects to the server through Dial-Up Networking, copies the changes made, and then disconnects. Any item that you delete from either the offline folder or the corresponding server folder is deleted from both folders after synchronization occurs.
Creating an Offline Folder FileTo create an offline folder file, follow these steps:
All of the standard Outlook folders--Inbox, Outbox, Deleted Items, Sent Items, Calendar, Contacts, Journal, Notes, and Tasks--on the Exchange Server computer are now ready for offline use. You cannot selectively choose which folder will be available for offline use and which will not be. To set public folders for offline use, see the "Working with Public Folders Offline" section of this article.
Set User-Defined Folders for Offline UseTo set any user-defined folders for offline use, follow these steps:
NOTE: When you start Windows, do not press ESCAPE when you are prompted for the Windows password, or you will not be able to access the .ost file because the proper credential information has not been supplied.
The file filename.ost cannot be accessed because it has been configured for use with a different mailbox.
Working with Public Folders OfflineTo work with public folders offline, follow these steps:
Synchronizing FoldersWhen you synchronize, a log file appears as a message in your Deleted Items folder. This log file contains information such as the time that you synchronized, the names of the folders that were synchronized, and the number of items that were added.
To synchronize offline folders, use one of the following methods.
Synchronizing a Specific FolderClick to select the folder that you want to synchronize, click Synchronize on the Tools menu, and then click This Folder.
Synchronizing All FoldersOn the Tools menu, click Synchronize, and then click All Folders to synchronize all your offline folders.
Synchronizing a Group of FoldersTo synchronize a group of folders, first make sure that the folders are available for offline use. Then point to Synchronize on the Tools menu, click Offline Folder Settings, and then click the folders that you want to group for synchronization.
Automatically Synchronizing All Folders When You Quit OutlookTo automatically synchronize all folders when you quit Outlook, follow these steps:
It is important to synchronize and download the Address Book before you log off the Exchange Server computer. This is particularly important the first time to ensure that all your offline folders are updated.
To download your Address Book, use the following steps:
The Remote Mail feature is not available if you are set for offline folder use. For additional information about Remote Mail and how to use it, click the following article number to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/195436/ )Remote mail, Offline folders, and working offline