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...

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...