When you try to delete shared calendars in Microsoft Office Outlook 2003, you can only delete one shared calendar at a time.
Note To delete a shared calendar that you added to Outlook 2003, right-click the shared calendar, and then click Delete.
This problem was first fixed in a hotfix that is now contained in a service pack. If you installed the latest Office 2003 service pack, you do not have to install the hotfix.
Service pack information
This problem is corrected in Office 2003 Service Pack 2.
To resolve this problem, obtain the latest service pack for Office 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
870924 How to obtain the latest service pack for Office 2003
How to obtain the hotfix
This issue is fixed in the Outlook 2003 post-Service Pack 1 Hotfix Package that is dated September 3, 2004. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
883942 Description of the Outlook 2003 post-Service Pack 1 hotfix package: September 3, 2004
After you install this hotfix, follow the steps that are listed in the "More Information" section to use the /resetsharedfolders parameter on a command-line so that all the shared folders that you added are removed the next time that you start Outlook 2003.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Office 2003 Service Pack 2.
Follow these steps so that all the shared folders that you added are removed the next time that you start Outlook 2003:
Quit Outlook 2003.
Click Start, and then click Run.
Click the file Outlook.exe, and then click Open.
Note By default, the Outlook.exe file is installed at the following location: