David Wang

David Wang on IIS, ISAPI, Exchange, Virtual Server, and whatever else I fancy...

February, 2006

Blog - About

David's Bio

1/30/2006

Hurray... there is finally an "About the blog author" link... so I am going to move my links here.

//David

  • David Wang

    HOWTO: Sharepoint and CustomAuth, Part 1 - Soliciting Questions

    • 41 Comments
    I have been getting a bunch of private requests from many people asking me variations of the following questions: "I want to use Sharepoint, but I want user authentication to be done with CustomAuth [or their own Wildcard Application Mapping ISAPI...
  • David Wang

    More on Virtual Memory, Memory Fragmentation and Leaks, and WOW64

    • 22 Comments
    I found myself writing a very long response to a recent comment to this blog entry , so I decided to make it into a blog entry and link the two. Question: Thanks for the info. Sorry i was not clear. I am recycling the memory based upon the virtual...
  • David Wang

    Unicode and ISAPI Filters

    • 17 Comments
    Question: How can one use GetHeader api of PHTTP_FILTER_PREPROC_HEADERS to retrieve fields, such as "url" and others, in unicode? I could not find any documentation on this topic. Thanks a lot, Answer: It is not possible to retrieve a value...
  • David Wang

    Office Move 2006, Part 2

    • 13 Comments
    I finally got around to setting up and re-arranging my office after the completion of the Office Move. Like Wade, I spend the extra time and effort to disassemble all wires of my computers prior to moving and reassemble them myself after the move. My...
  • David Wang

    Does IIS6 truncate HTTP headers at a hard-coded limit?

    • 12 Comments
    Question: Using IIS the HTTP_ACCEPT header server variable received from the client appears to have a hard coded limit of 259 characters. This is causing problems when using a Windows Mobile 5 Smartphone which has a longer string than 259 characters...
  • David Wang

    Can I write an ISAPI Filter using Managed Code?

    • 10 Comments
    Question: Hi, Is it possible to write an ISAPI filter equivalent (IHttpModule imlementation?) using managed code? I want my filter to get invoked for non .NET applications a well. thanks Answer: Unfortunately, you cannot [yet] write an...
  • David Wang

    Why IIS6 Application Pool Recycle Events are not logged

    • 8 Comments
    Question: Hi, I would like IIS to log application pool recycle events. I followed this article http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/87892589-4eda-4003-b4ac-3879eac4bf48.mspx restarted IIS and even rebooted...
  • David Wang

    Lumiere

    • 7 Comments
    Ok, this is something non-techie and more "off-topic" than usual, but hey, I think it is still "in-character" when it comes to me... I'm in a wacky, experimental mood at the moment (well, more than usual), so I'll give this a try. If it doesn't work out...
  • David Wang

    The TiVo Desktop

    • 6 Comments
    After years of using plain TiVo Series 2 (and being pretty satisfied with it), I decided to try out their next logical procession - the TiVo Desktop 2.2. My primary motivation is to free up space on the TiVo box to allow me to record shows through a weekend...
  • David Wang

    On IIS Team Blogging

    • 5 Comments
    I was randomly browsing blogs on blogs.msdn.com following the recent Community Server upgrade, and I happened upon the newly started blog of a friend of mine on the Sparkle (aka "Microsoft Expression Interactive Designer" or EID) team. I thought "cool...
  • David Wang

    ASP Application, Large Memory Needs, and 64bit IIS6

    • 4 Comments
    Ok... I still have not gotten around to writing that uber blog entry/guide on the ins and outs of 64bit IIS6 and WOW64... so I wager I should take little bites here and there as motivation. Writing big long technical articles that try to answer lots...
  • David Wang

    ASP Startup/Shutdown Anomalies on IIS6?

    • 4 Comments
    Question: This was posted earlier in microsoft.public.inetserver.asp.general; it was suggested I ask these questions here... In trying to improve the throughput of a classic ASP app I wrote a few years ago, I added monitoring to the application...
  • David Wang

    HOWTO: Run IIS6 in native Worker Process Isolation Mode

    • 4 Comments
    Question: I've got a box running fine these days, but now I want to experiment a bit. I have a long-running .asp page and I want to change the application pool settings for it. But when I go to the IIS console, there is no entry in the tree for Applicaiton...
  • David Wang

    IIS Diagnostics Toolkit a la carte

    • 4 Comments
    Last month, after more than a half year of wranging with the Windows OOB process , we finally released the IIS Diagnostics Toolkit, "full-monte" version . At that time, we promised to release the "a la carte" MSIs for each constituent of the IIS Diagnostics...
  • David Wang

    HOWTO: Address random 403 errors that cause images to not display

    • 3 Comments
    Question: We are running IIS 5.0 on Win XP Pro, with dual core processors and 1 GByte of memory. Many of the HTML pages being served reference lots of small jpgs (between 20 and 50). We have had our site up for a few months, with no problems. Recently...
  • David Wang

    Blog Upgrade, Part 2

    • 2 Comments
    Since the last time I blogged about the blogs.msdn.com upgrade , a lot of things have improved and bug fixes made... to the point that I am now very happy with the upgrade. I have gotten over the growing pains and like the new set of features very much...
  • David Wang

    Why ISAPI Filters can load in some but not all websites on a Domain Controller

    • 2 Comments
    I recently encountered this question from multiple users simultaneously, and while the behavior looks bizarre, the answer is equally peculiar... so I thought it nice to share this little gem... Question: Hi All, I have an isapi filter that works...
  • David Wang

    Office Move 2006

    • 2 Comments
    For the next several days (through the weekend), the entire IIS team has been evicted from our offices as movers shuffle many of us around in preparation for that big unified push to ship IIS7. So, we are all looking at a 4+ day weekend... In some...
  • David Wang

    HOWTO: Retrieve and Interpret ISAPI Filter Status

    • 1 Comments
    Question: Is there way to script a check on the success or failure of the Filter, ie a vbscript object that contains the state of loaded DLL's? One can get the list of filters installed from the metabase, but how would one get the state? The metabase...
  • David Wang

    Weekend at the Washington Wineries

    • 1 Comments
    Lately, I have been a bit more focused on doing my day job of working on IIS7... Yeah yeah, I got my office back in order after the move, so I wager I should put the time to some good use. Actually, I just haven't encountered a blog topic during this...
  • David Wang

    Why IIS6 can send invalid HTTP Responses

    • 1 Comments
    Question: Hello All, My client has a IIS 6.0 with some static pages configured in it. My application is a middleware that sits in between the browser client and the IIS 6.0 Web server. Now, my problem is that IIS 6.0 is always sending Responses...
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