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The Latest Blog Posts
  • Albatross!

    Multiple IEs on one machine

    With the recent release of a preview of IE7 beta 2, there's been another slew of demands for "standalone IE", and much posturing on both sides about whether Microsoft can/should provide this. I said to Molly Holzschlag of the Web Standards Project...
  • Test Guide

    Through The Glass Darkly

    Testing is often divided into two types: black box testing, where you poke at the product from the outside and don't have a clue how it's put together or what makes it tick, and white box testing, where you inspect source code and execute the product...
  • scooblog by josh ledgard

    Developer Servicing Web Site/Road map Released

    After the release of Visual Studio 2005 there were a few developer questions around our servicing plans. Today a new developer center launched where people can find up to date information on our servicing plans, terminology, and existing updates. Check...
  • Pedro Silva's Blog

    Couple of Cool Utility Libraries

    I saw these two posts on Greg's blogs, and they look very intriguing: FileHelpers and Screen Grabbing . These two libraries appear to be very useful - who doesn't need simplified file read/write functionality. And, the screen capture one is cool because...
  • Sebastien St-Laurent's (AKA Sebby) WebLog

    Flight Simulator 10 : Shader 2.0, 3.0... Do I need to upgrade my hardware?

    By now, i'm sure you have seen some of the latest screen shots for Flight Sim 10. If not, take a look at FS Insider . This has brought forth alot of questions in regards to hardware support and what type of shader hardware is required to take advantage...
  • The Inner Product

    Windows Media Connect can’t see my files

    I’ll cover the common causes for Windows Media Connect (WMC) not exposing a file. I’m going to limit the information today to files that are on the same computer as WMC. I’ll cover network shares in another post. There are three common reasons why...
  • Windows Embedded Blog

    Preventing 'Last Access' Chatter

    The NTFS file system comes with some way cool features. Unfortunately, not all of these features are beneficial in some embedded systems. When used with EWF, one NTFS feature that is typically not desirable is "Last Access" logging. This feature keeps track of when a file or folder was last accessed as a result of either a read or a write operation.
    The NTFS file system keeps a Last Access Time attribute for each file and folder on the volume. When a file is access, this attribute is updated in memory and then later the attribute is written, with a delay of up to one hour, to two places on the disk. In addition to writing this value to the file's attribute, it is also written to the Master File Table (MFT) record.
    For a flash based volume, one would like to minimize the number of writes made to the volume so that the life of the memory is maximized. In many systems a RAM based EWF overlay is used for this purpose. But with the NTFS file system logging every access to every files and folders on a volume, the RAM overlay could be quickly consumed.
    Not to worry, there is a way to disable the Last Access logging. And, it's not particularly painful. All you need to do is to create the following registry key on your run-time image:

    Key Name: HKEY_LOCAL_MACHINE\SYSTEM \CurrentControlSet \Control\ FileSystem
    Name: NtfsDisableLastAccessUpdate
    Type: REG_DWORD
    Value: 1

    Although disabling this feature will significantly "quiet" the NTFS file system driver, this isn't the only performance enhancement you should consider. For a full list of EWF performance considerations, please read this link.
    For general information on optimizing NTFS performance, you might want to read this article.

    - Jim


    Comments Product Updates

  • Windows Embedded Standard (Standard 7, Standard 2009, XPe...)

    Preventing 'Last Access' Chatter

    The NTFS file system comes with some way cool features. Unfortunately, not all of these features are beneficial in some embedded systems. When used with EWF, one NTFS feature that is typically not desirable is "Last Access" logging. This feature keeps...
  • Marcus Perryman's WebLog

    MSMQ on Windows Mobile 5.0

    Did you know there is a new version of MSMQ for Mobile 5.0? The distribution package is available as an aditional download from here: And finally its available through CF...
  • John Bristowe's Weblog

    Lethbridge .NET User Group Meeting Tonight

    The Lethbridge .NET User Group will be conducting its monthly meeting later tonight. Mike Hillyer will be covering various aspects of MySQL and data normalization. More information about this event can be found here .
  • Alex Barnett's blog

    How many feeds do you subscribe to?

    How many RSS feeds do people subscribe to? This is one of the questions Wolfgang Bartelme asked his blog (feed?) readers and he's got 86 responses so far. As Chris points out the average seems number of feeds being subscribed to as reported within...
  • Public Sector Developer Weblog

    Windows Communication Foundation (code name: Indigo) 101

    Subtitle: “What is Windows Communication Foundation, and why should I care?” [Brace yourself, it's a long blog entry] So, I was thinking about doing a couple of blog entries on building “Connected Systems” using Windows Communication Foundation...
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