Notes from a dark corner

Debugging anything that uses clock cycles

Malawi 2.0 – Microsoft CSS working to provide clean water

A team of 10 volunteers from Microsoft Customer Service and Support in Europe and North America have...

Author: Doug Stewart -MSFT Date: 08/24/2012

Web browser fails to connect to some SSL/HTTPS web sites

Following the publication of Microsoft Security Advisory (2661254) last week, clients that have...

Author: Doug Stewart -MSFT Date: 08/21/2012

Where is Windows Embedded?

More places than you might realise as this short and interesting video shows

Author: Doug Stewart -MSFT Date: 08/08/2012

PerfView - a powerful tool for investigating .NET performance issues

Vance Morrison, Performance Architect on the Common Language Runtime (CLR) team writes and maintains...

Author: Doug Stewart -MSFT Date: 07/20/2012

Great article and free eBook on .NET Memory Management

This article by Chris Farrell is a great introduction to how .NET manages memory for...

Author: Doug Stewart -MSFT Date: 07/17/2012

Turning IIS logs into web tests

Nice blog post here by MVP Tarun Arora on turning IIS logs into web tests. Great stuff!Doug

Author: Doug Stewart -MSFT Date: 07/05/2012

IIS Best Practices

My colleague Cenk in Turkey has just published a great set of IIS Best Practices. Sound...

Author: Doug Stewart -MSFT Date: 06/22/2012

New Microsoft Support portal for small businesses

Yesterday we launched a new Microsoft Support portal for small businesses.Lots of information around...

Author: Doug Stewart -MSFT Date: 05/01/2012

My computer is running very slowly

A recent comment on one of my blog posts suggested that my blog was a bit too technical and did not...

Author: Doug Stewart -MSFT Date: 05/01/2012

Great additions to System Center Advisor

We recently added proactive diagnostics for both SharePoint and Exchange to System Center Advisor...

Author: Doug Stewart -MSFT Date: 04/30/2012

Find solutions at

A new wizard style portal on has gone live.Additionally you can find a nice...

Author: Doug Stewart -MSFT Date: 04/30/2012

3,500+ code samples and rising!

The Microsoft All-In-One Code Framework continues to expand, now encompassing more than 3,500 code...

Author: Doug Stewart -MSFT Date: 04/20/2012

Take presentation skills to the next level - live augmented reality using Microsoft Kinect

I felt my draw dropping as I watched this. Quite...

Author: Doug Stewart -MSFT Date: 04/16/2012

Microsoft Next 2012 – featuring support diagnostics!

The Microsoft Next 2012 contest recently concluded and among the finalists this year was a video by...

Author: Doug Stewart -MSFT Date: 04/16/2012

Enhanced JavaScript Debugging support in Visual Studio 11 beta

Interesting post by Dmitri Leonov on enhanced JavaScript Debugging support in Visual Studio 11 beta

Author: Doug Stewart -MSFT Date: 04/11/2012

New software diagnostic service available

My colleague Steve Justice has just blogged about a new software diagnostic service called Fix it...

Author: Doug Stewart -MSFT Date: 02/28/2012

OneNote shortcuts shortcut

I am not big on making New Year resolutions but I do keep telling myself I should become more of a...

Author: Doug Stewart -MSFT Date: 01/16/2012

New CLR and .NET Performance tool

Vance Morrison, CLR performance architect here at Microsoft, has released a new tool for conducting...

Author: Doug Stewart -MSFT Date: 01/04/2012

C# everywhere and Mono

I recommend this absolutely fascinating blog post by Miguel de Icaza summarising the progress of...

Author: Doug Stewart -MSFT Date: 12/23/2011

Managing source windows in WinDBG

If you make use of the source code debugging features WinDBG you may find it quite annoying the way...

Author: Doug Stewart -MSFT Date: 12/01/2011

Happy Birthday–BBC Micro!

Yes, the BBC Micro is 30! . Great article about the history of it here. The “model B”...

Author: Doug Stewart -MSFT Date: 11/30/2011

Microsoft EMEA IIS/ASP.NET and web developer support team

I recently attended an offsite meeting in Munich for our Microsoft EMEA IIS/ASP.NET and web...

Author: Doug Stewart -MSFT Date: 11/29/2011

Microsoft resources for developers

I recently had reason to put together a list of general resources available from Microsoft aimed at...

Author: Doug Stewart -MSFT Date: 11/28/2011

WebPI command line tool (WebPIcmd.exe)

A new preview version of the WebPI command line tool (WebPIcmd.exe) has been...

Author: Doug Stewart -MSFT Date: 11/25/2011

Fix for issue with infinite loop involving InvalidateAutomationAncestors

I recently finished working on a support case where the customer was hitting the same issue as this...

Author: Doug Stewart -MSFT Date: 11/25/2011

New post on troubleshooting 403.7 errors

My colleague Emmanuel has published a great new blogs post on troubleshooting 403.7 “Client...

Author: Doug Stewart -MSFT Date: 11/24/2011

.NET 4.5 compatibility

The .NET Framework team are working on .NET 4.5 and are inviting people to start testing their...

Author: Doug Stewart -MSFT Date: 11/01/2011

Tips for successful .NET Debugging with WinDBG

Here are my tips for pain free .NET debugging with WinDBG1) Always use a 32-bit debugger for a...

Author: Doug Stewart -MSFT Date: 10/31/2011

The comma operator

I went on a excellent C++ course earlier this year. I can’t claim to have ever been a...

Author: Doug Stewart -MSFT Date: 10/11/2011

New whitepaper on claims based authentication in SharePoint

Just like it says in the title. Whitepaper here.HTHDoug

Author: Doug Stewart -MSFT Date: 10/04/2011

Version history of the CLR 4.0

[ update 18/6/2012 LDR.569 added ] [ update 16/4/2012 – changed the format to make LDR/GDR...

Author: Doug Stewart -MSFT Date: 09/30/2011

An interesting tool for managed memory analysis–LeakShell

A very interesting article on manager memory troubleshooting and also the introduction of a new tool...

Author: Doug Stewart -MSFT Date: 09/16/2011

“Script Error encountered", "'__doPostBack' is undefined” or MaintainScrollPositionOnPostBack fails to maintain the scroll position

You may receive this error in the browser using Internet Explorer 10: “Script Error...

Author: Doug Stewart -MSFT Date: 09/05/2011

Check file versions for IIS in Windows Server 2003

If you are ever getting strange crash or stability issues with IIS in Windows Server 2003 (IIS6) it...

Author: Doug Stewart -MSFT Date: 08/31/2011

(UK) FREE One Day Windows Azure Discovery Workshops

If you are based in the UK, are a Microsoft Partner developing software products and service and...

Author: Doug Stewart -MSFT Date: 08/31/2011

“System.Runtime.InteropServices.COMException (0x80070102): Operation failed” trying to send a Fax from an ASP.NET application

I recently had a support case where the customer was trying to send a fax from an ASP.NET...

Author: Doug Stewart -MSFT Date: 08/30/2011

Web Farm Framework 2.1 released

The IIS team have provided a servicing release for Web Farm Framework 2.See also:WFF home pageWFF...

Author: Doug Stewart -MSFT Date: 08/02/2011

Fix for memory leak that happens when using the IIS ADSI provider

I’ve just finished helping on a case where a fairly simple usage scenario for the IIS ADSI...

Author: Doug Stewart -MSFT Date: 07/11/2011

Stunning images from nature

Here is a phenomenal video of the northern lights built from thousands of still images so as to...

Author: Doug Stewart -MSFT Date: 07/11/2011

Fascinating read about the battle against Rustock

This Special Intelligence Report about the taking down of the Rustock Botnet makes for very...

Author: Doug Stewart -MSFT Date: 07/07/2011

Web server security and health tools

A couple of interesting tools for examining and keeping track of server configuration, particularly...

Author: Doug Stewart -MSFT Date: 07/04/2011

Good news for web security

Having spent many hours trying to remove scare-ware products from the systems of various friends and...

Author: Doug Stewart -MSFT Date: 06/27/2011

What is Microsoft Premier Support?

Here is a clear, short, animated video of what Microsoft Premier Support Services are all about....

Author: Doug Stewart -MSFT Date: 04/12/2011

Do people really print a lot of email?

I am surprised at how many people (not just in Microsoft but everywhere) have something at the...

Author: Doug Stewart -MSFT Date: 04/08/2011

Released: Remote Server Administration Tools for Windows 7 with Service Pack 1 (SP1)


Author: Doug Stewart -MSFT Date: 04/08/2011

New developer tools features in IE9

Good blog post here detailing the new developer tools features in Internet Explorer 9.HTHDoug

Author: Doug Stewart -MSFT Date: 04/07/2011

Updated the “Version history of the CLR 2.0”

I’ve done an update to my “Version history of the CLR 2.0” page, adding in...

Author: Doug Stewart -MSFT Date: 04/07/2011

You spent HOW much on our new server and the app slowed DOWN??!!

I had a support case recently where the customer had moved their server farm onto brand new...

Author: Doug Stewart -MSFT Date: 04/06/2011

Survey about IIS maturity models

A friend of mine, Marcus Ridge, worked with us here at Microsoft UK in the IIS support team as his...

Author: Doug Stewart -MSFT Date: 03/15/2011

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