I just stumbled across this error message:
Event Type: Fehler
Event Source: MSExchangeOMA
Event Category: (1000)
Event Id: 1503
Date: 11/26/2008
Time: 14:11:35
User: Not Applicable
Server: servername
Description:
Method not found: System.String System.DirectoryServices.DirectoryEntry.get_Password().
Source: Microsoft.Exchange.OMA.Preferencing
Stacktrace:
at Microsoft.Exchange.OMA.Preferencing.AdUserObject.get_globalWirelessEnable()
at Microsoft.Exchange.OMA.Preferencing.AdUserObject.get_UserIsWirelesslyEnabled()
at Microsoft.Exchange.OMA.Preferencing.OmaUserInfo.get_UserIsWirelesslyEnabled()
at Microsoft.Exchange.OMA.UserInterface.Global.Session_Start(Object sender, EventArgs e)
Meldung: Eine Ausnahme vom Typ Microsoft.Exchange.OMA.DataProviderInterface.ProviderException wurde ausgelöst.
Ereignismeldung:
Benutzermeldung: Systemfehler at der Verarbeitung Ihrer Anforderung. Versuchen Sie es erneut. Wenden Sie sich an Ihren Administrator, wenn das Problem wiederholt auftritt.
Quelle: Microsoft.Exchange.OMA.UserInterface
Stacktrace:
at Microsoft.Exchange.OMA.UserInterface.Global.Session_Start(Object sender, EventArgs e)
at System.Web.SessionState.SessionStateModule.RaiseOnStart(EventArgs e)
at System.Web.SessionState.SessionStateModule.CompleteAcquireState()
at System.Web.SessionState.SessionStateModule.BeginAcquireState(Object source, EventArgs e, AsyncCallback cb, Object extraData)
at System.Web.HttpApplication.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
OMA apparently tries to read the password from a System.DirectoryServices.DirectoryEntry instance. When taking a look at the documentation, one soon finds that the Password property is write-only in .NET 2.0, but was read/write in .NET 1.1.
Solution
Configure the WebSite to run with .NET 1.1. You may need to install it on the server first. If other applications are running on the IIS, be sure to move them to another application pool, if they need .NET 2.0.
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