401 errors using WebDAV to access a newly created mailbox

I recently worked on a issue where the customer was programmatically creating mailboxes on an Exchange server with CDOEM and ADSI, and were having some issues trying to access these newly created mailboxes with their WebDAV code.  This is a known issue that occurs because the mailbox is not available to WebDAV until a client…

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Changes in the newest CDO web download allow more options for CONNECT_IGNORE_NO_PF

If you’ve been bit by the problems with the web download of CDO 1.21 returning a 8004011D when trying to access an Exchange 2003 server then this post may help you out.   First the history of the problem and then what options are available to avoid this issue.  So as you probably already know,…

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Problems with CDO 1.21 sending meeting cancellations

I wanted to get this blogged until we get an article published on this.  Here’s the problem that were recently encountering and what we found, after the fact it all makes sense when you think about. When using CDO 1.21 and trying to cancel an existing meeting from an organizer’s mailbox you find that the…

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The Exchange Workflow designer is gone…

Thom just published a post about the removal of the Exchange workflow designer from the Exchange downloads.  And I just posted my comments about troubleshooting the workflow engine in Exchange.  🙂 Here’s the link to the Exchange API-spotting post about this: http://blogs.msdn.com/exchangedev/archive/2007/05/15/microsoft-office-workflow-designer-for-exchange-is-no-longer-available.aspx I have to say that I saw this coming with the release of Exchange Server 2007 and…

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The Exchange Workflow designer is gone…

Thom just published a post about the removal of the Exchange workflow designer from the Exchange downloads  Here’s the link to the Exchange API-spotting post about this: http://blogs.msdn.com/exchangedev/archive/2007/05/15/microsoft-office-workflow-designer-for-exchange-is-no-longer-available.aspx I have to say that I saw this coming with the release of Exchange Server 2007 and the lack of workflow libraries.  Really though, I think in the long…

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Custom Exchange web forms do not render properly with IE 7.0

I’ve seen this issue posted in the newsgroups a couple of times now along with a case or two on this coming to my attention.  So based on this, it seems like a good topic to bring up here. The problem that you run into here is that the custom Exchange web forms that you have registered…

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Common Exchange Workflow troubleshooting tips

As many of my co-workers know, one of the messaging technologies that is near and dear to my heart is our beloved workflow components that are available to developers in Exchange 2000 and 2003.  Over time and after working with numerous developers on various Exchange workflow related issues, I’ve attempted to compile a list of commonly used…

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CDOEXM IDataSource.Open returns 0x8000FFFF when trying to connect to an Exchange server

This is one of those issues that seems that it could be related to any array of issues, and really can only resolved by debugging into a local repro of the problem.  In this case we were trying to open a connection to an Exchange server with CDOEXM to do some typical management work with…

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CDO 1.2x and limitations with Free/Busy data publishing

Here’s a scenario that I ran into with a customer recently. You’re a developer that’s using the CDO 1.21 Session’s SetOption method to set the “FreeBusyMonths” and have setting it with a value of 36. However, after some time, some of your users are reporting that they are seeing that it looks like the max of the Free/Busy…

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