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ActiveHTML: FAQ - Frequently asked questions

  • AJAX does not work as expected
    Please make sure that Request-Header "HTTP_X_REQUESTED_WITH" is set in Ajax-Requests.
    You may do this by adding the following code to your Ajax-Scripts:
    xmlHttp.setRequestHeader("X-Requested-With", "XMLHttpRequest");
    Many Ajax-Libraries (like Prototype, jQuery, Mootools and YUI) will set this header properly.
    You may also try to turn off ActiveHTML config value HcSendEmptyCharset, but this may have unwanted side effects.
  • Error: 800a139a  /  Error: 800a01b0
    Please try to (re)install Microsoft Scripting Components version 5.6 or higher.
    You can download the newest version directly from Microsoft.
    This may also help, if you get unexpected error 500 from your webserver.
    Windows Script 5.6 for Windows XP and Windows 2000
    Windows Script 5.7 for Windows XP
  • Session Variables don't work
    Maybe your personal firewall blocks cookies. Cookies are required to use session variables.
  • Macromedia Dreamweaver Script does not work (CInt - Error)
    Please follow the instructions in <Program Files>\seliSoft\ActiveHTML\Install\IISEmu.txt.
  • ServerObjectCreateObject: - Error 'ASP 0134' - Invalid ProgID attribute
    Beginning with Windows Vista, the path to some COM objects are stored with environment variables in registry.
    (e.g. "%CommonProgramFiles%\System\ado\msado15.dll" for "ADODB.Connection" object)
    Some web servers don't not pass all environment variables to ActiveHTML.
    If environment variable CommonProgramFiles is missing, the COM object could not be created.
    Please execute (double click) Script:
    <Program Files>\seliSoft\ActiveHTML\Install\VistaEnvironment.vbs
    This script will add some important environment variables to ActiveHTML configuration.
  • ActiveHTML is slower than IIS
    Your web server calls ActiveHTML every time an asp-page is requested.
    This method is by design significant slower than IIS (which stays in memory the whole time).

If you don't find a solution for your problem in this FAQ, please start AHTMLCFG.EXE, enable Debug-Mode [x] and request the page that causes the error.
Now there should be one or more AHTML*.DEB in the ActiveHTML\DEB folder.
Please send these files and all related ASP and ASA files to


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