TruClient Browser for Internet Explorer

The TruClient Browser for IE (Internet Explorer) simulates the functionality of an IE browser. This enables you to record and replay scripts as if you were working in an IE environment.

For details on IE document and browser modes, see Browser modes.

Note: The TruClient browser for IE also requires read access to the following registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Internet Explorer

The TruClient browser for IE also requires write access to the following registry key: HKEY_CURRENT_USER\SOFTWARE\Hewlett-Packard\TruClient

TruClient Internet Explorer cache management

When you replay a script in the TruClient IE browser, TruClient simulates real life IE cache behavior. This means, if the script uses the same resources multiple times in the same iteration or in case "Simulate New User for each iteration" is disabled, TruClient IE will use the cached resources instead of sending additional requests to the server.

Use the IE Cache Enabler tool to implement the IE cache simulation mechanism on every Load Generator, Controller or BPM agent machine that runs TruClient IE scripts.

  1. From <Installation folder\bin> run HPTruClientIECacheEnabler.exe.

  2. You will be prompted for an administrative user-name and password.

  3. Select one of the following from the dialog box:

    Action Description
    Enable IE Cache

    Enables the IE Cache Simulation

    If you enable the cache simulation, you must run Disable the IE Cache before uninstalling TruClient.

    Disable IE Cache

    Disables the IE Cache Simulation

    Caution: You must run Disable the IE Cache mechanism before uninstalling TruClient.

Note: When opening TruClient IE from VuGen or as a standalone, TruClient will use the System cache folder for saving resources.


  • TruClient IE cache simulation might fail if a Microsoft IE browser window is open.
  • TruClient IE does not support DOMStorage and AppCache cache separation for virtual users.

Back to top

Firebug Lite

Firebug Lite is a third-party utility that provides many valuable development tools. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any Web page. You can access this utility by selecting Advanced > Firebug Lite or by pressing F12 while in TruClient's IE browser.

For details on Firebug Lite's features, see What is Firebug?

Back to top

Enforce Standards Mode

TruClient for IE can only record and replay applications in Standards Mode. TruClient enforces this mode on all pages that you navigate to while you are recording and replaying.

To explore how pages are rendered in a non-standard IE mode, you can temporarily deactivate enforcement by deselecting Advanced > Enforce Standards Mode. When deselected the following message appears in the Development Window:

While in the mode you will not be able to develop or edit scripts in the TruClient IE browser. Click the Enforce button in the message box or select Advanced > Enforce Standards Mode, to continue recording and replaying in the TruClient for IE browser.

Back to top

Enable the negotiate method for authentication

If your application server supports only the negotiate method for authentication (the HTTP response is with "HTTP/1.1 401 Unauthorized" and "WWW-Authenticate: Negotiate"), you must enable the negotiate option. To do so:

  1. Open the registry setting HKEY_CURRENT_USER\Software\Hewlett-Packard\TruClient\TruClientIE\TCWindows\CurrentVersion\Internet Settings.

  2. Change the value of the EnableNegotiate registry key from "0" to "1".

Back to top

Display IE log messages in console during replay

To display Internet Explorer log messages during replay, click the Console button in the Development window toolbar, or select View > Toolbars and Docking Windows > Console.

Back to top

Display a Favicon for the recorded application

You can display a Favicon (the icon that represents the website) in the address bar of the application browser. To do so, select View > Display Favicons. Your choice is saved for future scripts.

Back to top

Limitations of the TruClient IE browser

  • If you are using Windows 10 and you launch the TruClient IE browser, the system's proxy settings are changed to the settings specified in TruClient IE (the TruClient IE proxy settings are used if you open Internet Explorer or other applications which use the network connection).

    When you exit TruClient IE, the system's proxy settings are automatically restored.

  • The system proxy might be used instead of a proxy specified in the script when running more than one Vuser on a Windows 10 load generator.

Back to top