Wish you could wear flip-flops to work?

Working at Microsoft is an experience like not many others. Since graduating from what many consider to be the greatest university on the planet, I’ve worked at few very different types of companies. My first stint was working for the United States Senate. Yeah. My second place of employment was at a small consulting company…


Folder Homepage no longer works in Outlook 2007 from MAPI store providers

If you are developing or have developed a MAPI store provider for use in Outlook and are trying to support folder homepages in your store, you are probably familiar with the PR_FOLDER_WEBVIEWINFO property. This property is undocumented and not supported, but I’ll assume for the sake of this article that you have a read/write store and…


Free/Busy Appointments Missing After Using CDO 1.21 to Access Calendar

If you have written or use an application that uses CDO 1.21 (cdo.dll) that accesses your Calendar and you have users who complain that some recurring appointments are not appearing in Free/Busy in Outlook, this may be for you. When a recurring appointment is created in Outlook, you may not realize that really this is…


Stehle’s finally doing his OOM series

I’ve been encouraging him to blog his “Matt Stehle’s Tenents of OOM Programming” for a while now, and he’s finally begun with a series on some common pitfalls we see with developers using OOM in .NET. This first article is concerned with a common reason we see for events to stop firing in your VSTO add-ins….


Tell Us Why You’re Still Using ECEs

We want to know why you’re still using ECEs as opposed to an add-in. Please hop over to Stephen Griffin’s blog and let us know: http://blogs.msdn.com/stephen_griffin/archive/2007/10/12/whither-ece.aspx  


Ooh, SNP

We’ve recently been seeing an elevated number of cases where networking issues are adversely affecting performance and causing other problems with messaging technologies. The common thread in many of them is that the problem only started to occur after Windows Server 2003 SP2 was installed. I recently learned that we shipped a new feature in…


ARGH: Large WebDAV PROPPATCH requests fail with 401/401.5

I had a case recently where one of our products, Duet, was doing a large PROPPATCH against Exchange 2003 and it was failing with a HTTP 401 error. The customer noticed that small PROPPATCH requests succeeded, but large ones (bigger than say 25 KB) would fail. Well, we knew that it couldn’t be a permission problem,…



Exchange as a development platform is a popular and intriguing notion and has led to several ISV’s and enterprise development teams to leverage this capability to create some innovative and inspiring solutions. Many of these applications have been written to add functionality; others to restrict functionality; still some others to just keep track of what’s…