Software

The Outbak.dll file is a component of the Microsoft Outlook Personal Folders Backup add-in. This behavior can occur if the Outlook Personal Folders Backup add-in is no longer installed on the computer but a reference to the Outbak.dll file remains in the registry. As a result, the Outbak.dll file is requested but not found when you start Outlook.

To resolve this issue, remove the entry for the Outbak.dll file from the registry. To do this, follow these steps.

1. Click Start, and then click Run.

2. In the Open box, type regedit, and then click OK.

3.Locate and then click the following registry key:
HKEY_CURRENT_USER\Software\Microsoft\Office\Outlook\Addins

4.On the File menu, click Export.

5. Specify a file name and location where you want to save the exported registry file, and then click Save.

6. In the left pane, expand the registry key that you located in step 3 (if it is not already expanded), right-click the Microsoft.OutlookBackup.1 subkey, and then click Delete.

7. If you are prompted to confirm the deletion, click Yes.

8. On the Registry menu, click Exit to quit Registry Editor.

The Outlook Personal Folders Backup add-in is available for download from the following Microsoft Web site:
http://office.microsoft.com/downloads/2002/pfbackup.aspx

This question was closed by the author