Problem:

Nach dem Löschen der Adressliste Alle Räume lässt sich bei OWA die Adressliste nicht mehr aufrufen und bringt den Fehler:

Call stack

Microsoft.Exchange.Data.Directory.SystemConfiguration.AddressBookBase.GetAllRoomsAddressList(ClientSecurityContext clientSecurityContext, ADSystemConfigurationSession configurationSession)
Microsoft.Exchange.Clients.Owa.Core.UserContext.get_AllRoomsAddressList()
Microsoft.Exchange.Clients.Owa.Core.Directory.DirectoryAssistance.GetAllRoomsAddressBookInfo(UserContext userContext)
Microsoft.Exchange.Clients.Owa.Core.UserContext.get_AllRoomsAddressBookInfo()
Microsoft.Exchange.Clients.Owa.Premium.Controls.SecondaryNavigationDirectoryList.CreateCondensedDirectoryList(UserContext userContext, Boolean isRoomPicker)
Microsoft.Exchange.Clients.Owa.Premium.DirectoryView.RenderSecondaryNavigation(TextWriter output, UserContext userContext, Boolean isRoomPicker)
Microsoft.Exchange.Clients.Owa.Premium.Controls.NavigationHost.RenderSecondaryNavigation(TextWriter output, Boolean showContacts)
ASP.forms_premium_addressbook_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer)
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
System.Web.UI.Page.Render(HtmlTextWriter writer)
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Lösung:

http://blogs.msdn.com/b/dgoldman/archive/2007/12/05/deleting-the-all-rooms-address-list-stops-it-from-showing-up-in-owa.aspx

Tipp im ADSI Editor muss man die verschiedenen Bereiche wie Konfuguration erst auswählen um die im Lösungsvorschlag genannten Parameter zu finden!