It does not say in the error message. Have you had this error message before? -----Original Message----- From: Mulnick, Al [mailto:Al.Mulnick@xxxxxxxxxx] Sent: Monday, April 19, 2004 7:23 AM To: [ExchangeList] Subject: [exchangelist] RE: Question on Event Sinks http://www.MSExchange.org/ Which properties doesn't it want to register? -----Original Message----- From: Tom Knowlton [mailto:tom@xxxxxxxxxxxxxx] Sent: Friday, April 16, 2004 6:42 PM To: [ExchangeList] Subject: [exchangelist] Question on Event Sinks http://www.MSExchange.org/ Hi. I am developing a Class Library in C# using VS .NET 2002. Exchange Server 2000. I am trying to write a Managed Exchange Server Event Sink (as a class library) in C#. I have been following this tutorial step-by-step: http://www.codeproject.com/csharp/CsManagedEventSinksHooks.asp So far so good....except when it comes down to binding the component to the folder on the Exchange Store. When I do...I get the following error: Microsoft (R) Windows Script Host Version 5.6 Copyright (C) Microsoft Corporation 1996-2001. All rights reserved. New Event Binding created: Event: onsave;ondelete Sink: MyEventSink.ExchEventSink FullBindingUrl: file://./backofficestorage/buyersfund.com/mbx/tom/FaxFailure/reg Event.eml Error Updating Props : -2147221163 Interface not registered Press any key to continue . . . ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------ ------------------------------------------------------ List Archives: http://www.webelists.com/cgi/lyris.pl?enter=exchangelist Exchange Newsletters: http://www.msexchange.org/pages/newsletter.asp Exchange FAQ: http://www.msexchange.org/pages/larticle.asp?type=FAQ ------------------------------------------------------ Other Internet Software Marketing Sites: Leading Network Software Directory: http://www.serverfiles.com No.1 ISA Server Resource Site: http://www.isaserver.org Windows Security Resource Site: http://www.windowsecurity.com/ Network Security Library: http://www.secinf.net/ Windows 2000/NT Fax Solutions: http://www.ntfaxfaq.com ------------------------------------------------------