This article was previously published under Q156304
Retired KB Content Disclaimer
This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.
When you start the Microsoft Exchange client with a new profile in offlinemode for the first time, the following error message appears:
The set of folders could not be opened. You must connect to your Microsoft Exchange Server computer with the current profile before you can synchronize your folders with your offline folder file.
When you click OK, the Microsoft Exchange client opens, but any attempt toaccess your mailbox results in the same error message.
The offline folder file (.OST) must be fully synchronized with the computerrunning Microsoft Exchange Server in online mode before it can be usedoffline.
This occurs when you use the Inbox Setup Wizard to create a profile andanswer Yes to the Microsoft Exchange Server service question "Do you travelwith this computer?" The result is that a default offline folder file iscreated in the system directory (that is, C:\WINDOWS\ EXCHANGE.OST forWindows or SYSTEM FOLDER, PREFERENCES, EXCHANGE PROFILES, OFFLINE FOLDERSfor Macintosh operating systems) and the option "Choose the connection typewhen starting" is selected.
When you start the Microsoft Exchange client using this profile, you arepresented with the choice to connect or work offline. If you choose to workoffline, and you have not yet synchronized the .OST file, the error messageappears.
To resolve this problem:
Start the Microsoft Exchange client using this profile and connect in online mode to the computer running Microsoft Exchange Server by one of the following methods:
For both Windows and Macintosh users: Use the client on a computer that is connected to the computer running Microsoft Exchange Server by a LAN. -OR-
For Windows users only: Establish a dial-up connection to the computer running Microsoft Exchange Server prior to starting the Microsoft Exchange client.
On the Tools menu, click Synchronize and click All Folders. Allow the synchronization of all folders to complete before proceding.
Exit and log off and restart the Microsoft Exchange client in offline mode.
You must log on to Windows 95 in order to access your offline folders. Thismight simply be the Windows login or a network client like the Client forMicrosoft Networks login. Regardless, if you bypass this login (hitting Escapeor selecting Cancel) then you will not have access to the Offline Folder File.