Darren Jefford

Solution Architect, Microsoft Consulting Services, Microsoft UK

  • Darren Jefford

    Web Services: Concurrent Connections

    • 14 Comments
    The issue of concurrent outbound Web Service calls being throttled to two per endpoint comes up again and again with unmanaged and managed code – and it embarrassingly bit me last week in a BizTalk Performance and Scaling exercise despite me harking on...
  • Darren Jefford

    Looping around Message Elements

    • 26 Comments
    I had loads of fun a few weeks back with coming up with some options inside BizTalk on how to separate multiple elements inside a Message for individual processing. e.g: Retrieving all of the items individually in this Order message <Order> <Items>...
  • Darren Jefford

    System.Web.Mail and Authentication

    • 8 Comments
    A question came up recently on how to send email from .NET, System.Web.Mail offers a nice MailMessage and SmtpMail class that does the trick. The classes are a wrapper over the CDOSYS functionality that's been around for a bit, and are much nicer...
  • Darren Jefford

    JIT Debugger Dialog

    • 1 Comments
    An interesting question came in last week around how to get around the “annoying” JIT-Attach Debugger dialog that pops up if an Application throws an unhandled exception, etc. As all good programs should you can add a UnhandledExceptionHandler...
  • Darren Jefford

    Calling a .NET Assembly from Orchestration with Schema Types

    • 13 Comments
    There I was today pointing at a customer at a past blog entry on this topic – when I realized I’d never got around to posting it, Doh! Apologies for sitting on this for the last few months! I was running some BizTalk training earlier this year and got...
  • Darren Jefford

    VSTS Work Item Type Designer Preview

    • 19 Comments
    Hi, This is yet another long awaited “project” that I’ve been working on behind the scenes, the exponential improvement of the DSL Tools over the last year has meant I’ve had to throw away more and more code which is a great story for how compelling...
  • Darren Jefford

    Virtual PC: Keyboard stops working intermittently ?

    • 9 Comments
    I’ve been working with Virtual PC 2004 for a while now, I’m spending almost all of my development/testing time inside various Virtual PC images so I can protect my physical PC from being cluttered up with all the technologies, code, etc. that...
  • Darren Jefford

    BizTalk 2004 Web Services

    • 4 Comments
    BizTalk 2004 has great Web Service support; you can create an orchestration as usual and then expose it for invocation as a Web Service by using the Biztalk Web Services Publishing Wizard which is located on the Tools Menu inside VS.NET, and you can of...
  • Darren Jefford

    Suspended Messages

    • 12 Comments
    I’ve been working with a customer recently around a new BizTalk 2004 project, they raised a question around being notified when a “Message” was suspended by BizTalk 2004. BizTalk suspends Messages if say a validation error occurs...
  • Darren Jefford

    Windows Workflow Foundation - Where does BizTalk fit in?

    • 2 Comments
    The last paragraph of my Windows Workflow Foundation posting was me being deliberately “devils advocate” to try and get you to think about the possibility of Windows Workflow Foundation being used in everything from Windows Forms Applications to ASP.NET...
  • Darren Jefford

    Watch out: DebugView (OutputDebugString) & Performance

    • 1 Comments
    For developer level tracing the tracing classes held within the System.Diagnostics namespace are often used along with the Windows Sysinternals DebugView tool. Tracing events are written to OutputDebugString via the DefaultTraceListener trace listener...
  • Darren Jefford

    What is MSMQT?

    • 6 Comments
    So, What is MSMQT? I (stupidly as it turns out) just thought it was a new revision of MSMQ shipped with BTS04 that replaced or extended the built-in MSMQ functionality. Oh did I get that wrong!! J MSMQT ships with BizTalk 2004 primarily to get around...
  • Darren Jefford

    Installing Visual Studio Team System

    • 7 Comments
    The Visual Studio Team System (VSTS) CTP build is now up on the MSDN Subscriber downloads site . There are three bits that comprise a Team System installation · The Database tier (SQL Server 2005 Beta 2 – Yukon) · The Application tier (Team Foundation...
  • Darren Jefford

    Orchestration Profiler for BizTalk Server 2006 and BizTalk Documenter

    • 1 Comments
    Hi, I've recently taken ownership of the source for the BizTalk Orchestration Profiler and BizTalk Documenter tools that Jason Birth originally developed, the documenter has worked fine with BizTalk Server 2006 but the Profiler was broken in a number...
  • Darren Jefford

    SOAP Adapter Error Messages

    • 2 Comments
    Hi, Again in the scalability lab recently we were seeing a number of errors being raised by the SOAP adapter – some of them were down to the remote Web Service cowering in the corner when the might of BizTalk hit it all at once J We were seeing a mixture...
  • Darren Jefford

    Software in the cloud: Cloud Workflow

    • 1 Comments
    As promised in my last posting let's take a look at the new "Workflow in the cloud" functionality offered in the July drop of the BizTalk Services This cloud based workflow system leverages Windows Workflow and is hosted in our datacenter and extended...
  • Darren Jefford

    BizTalk 2004 Performance

    • 6 Comments
    I’ve been involved in a number of BizTalk 2004 Performance / Tuning engagements recently, it seems that most of this year customers have been busy writing solutions using BizTalk and are now getting to the point of deploying – hence it’s been really busy...
  • Darren Jefford

    Codename “Oslo”

    • 2 Comments
    Microsoft has just made the first public announcement of “Oslo” at the SOA and BPM conference, at a high level “Oslo” is an overarching initiative across multiple products and Microsoft divisions, in fact the first release as announced today will be made...
  • Darren Jefford

    Handy BizTalk Service WMI Scripts

    • 0 Comments
    I’m a nightmare for actually getting around to writing scripts to save me time; I have a list as long as my arm J This script is dead simple and largely based on samples from Script Center , which if you haven’t seen it is a goldmine of scripts for virtually...
  • Darren Jefford

    Handy BizTalk Debugging Tip

    • 7 Comments
    So, you’ve got Health and Activity Tracking (HAT) to look at the messages and orchestrations inside your BizTalk server, but typically you want more application level logging in the real world. The Enterprise Instrumentation Framework (EIF) is...
  • Darren Jefford

    How everyone should test their BizTalk based solutions: Presentation

    • 2 Comments
    I've managed to find somewhere to store the presentation deck I delivered yesteday and you can now download it from here . I've also added the slides I had to cut from the presentation to enable it to fit within the SOA & BPM conference breakout length...
  • Darren Jefford

    Windows Workflow Foundation

    • 3 Comments
    It’s been a long time coming! We announced Windows Workflow Foundation at the PDC today which means we can finally talk about it! J For those of you familiar with BizTalk Server 2004, Windows Workflow Foundation is analogous to the Orchestration...
  • Darren Jefford

    New Bluetooth Mouse

    • 1 Comments
    I recently splashed out on a new Microsoft Bluetooth mouse, very nice and I (foolishly) just expected it to plug in and work.. I’m running XP SP2 as you’d expect which has got built-in support for Bluetooth and for my other Bluetooth devices seems to...
  • Darren Jefford

    Extending Visual Studio Team System

    • 5 Comments
    I had to spend some time figuring out some of the Team System extensibility points recently for a presentation to some customers; it’s something I’ve been meaning to play with a while. You will need to download the Team Suite Extensibility...
  • Darren Jefford

    Logging and Instrumentation

    • 2 Comments
    Over the years I’ve helped to architect, develop, review, and troubleshoot various solutions ranging from windows applications up to huge enterprise scale applications and I keep banging my head against one particular area – Logging and Instrumentation...
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