Nutshell: CDO 1.21 not supported in .Net environment

Per the Microsoft support policy specified in the following KB, CDO 1.21 is not supported in a .NET Framework environment. Instead it recommends, to make use one of the following technologies to build the .NET Framework application, the supported options for accessing Exchange data are: • WebDAV • CDO for Exchange 2000 Server (CDOEX) and …


KB : Application support for WEBDAV to access Exchange Server?

Do you know the support that is available for applications that use the Web Distributed Authoring and Versioning (WebDAV) protocol to access Microsoft Exchange 2000 Server or Microsoft Exchange Server 2003 ?   What is supported? Microsoft support the use of the WebDAV protocol for the following items: •Non-recurring appointments •Contacts in Microsoft Outlook that…

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MAPI : Do you know why MAPI is not suitable for HTML messages?

Do you know why MAPI is not suitable for HTML messages?   MAPI 1.0 was written before HTML mail was developed and does not reliably support the creation of HTML-formatted messages. As you know, MAPI 1.0 is the version supported by all versions of Microsoft Exchange through version 5.5 (and all Service Packs). This includes…


How to optimize memory usage in Exchange Server 2003

I found this wonderful article describes the optimization of memory usage on your computer that is running Exchange Server 2003. For example, if you have 1 gigabyte (GB) or more of physical memory (RAM) installed on a server that is running Microsoft Exchange Server 2003, you must make sure that Exchange 2003 can make efficient…

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Outlook Performance Series : Outlook 2007 & Windows Vista error – .pst file could not be opened

Welcome to troubleshooting performance issues – MS Outlook Performance Series – Part 6  One of my customer reported that he is facing issue with Outlook 2007 & Windows Vista environment, as he can’t open the .pst files. He get the following error: <sample>.pst file could not be opened. The file may not be compatible with this version of Outlook or…

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Monitoring event sink # 13 – Best practices for Event sink registration

Event sink registration – Best practices It’s must to know when we try to register the event sink in Excahge environment. The following guidelines are helpful when you create event registration items: The scope of an event sink is restricted to a single store. Event registration items are automatically hidden when saved. To be instantiated…

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The support guidelines for client-side messaging development

The support guidelines for client-side messaging development This is one of the finest article describes “what is supported” and “what is not supported” when you develop custom solutions that integrate with Microsoft-based messaging products or Microsoft technologies. This article also contains most of the key information to be aware of when you develop with Microsoft…

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EWS : Best Practices for Using Exchange Web Services for Calendaring Tasks

Best practices for using Exchange Web Services for Calendaring Tasks  In Exchange Server 2007 – Exchange Web Services (EWS) provides, Rich set of Web methods and types can use to create/update/generate calendar work flow between Exchange 2007 mailboxes. These methods can also cause a lot of confusion and unforeseen consequences when they are used incorrectly. Here is…

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