Dragon Release notes—version 15.4

This topic describes new features, fixed issues, update instructions, and known issues for the following Dragon version 15.4 products:

  • Dragon Professional Group, VLA only
  • Dragon Legal Group, VLA only
  • Dragon Law Enforcement

There are two installation types for version 15.4:

  • Service pack—For existing Dragon customers.
  • Full build—For new Dragon customers.

Quick links

What's new
System requirements
Fixed issues
Update instructions
Installation instructions
Known issues
Upcoming changes


What's new

General enhancements

Automatic Gain Control option now disabled when connected through Remote Desktop

When you connect to Dragon through a Remote Desktop connection, the Automatically adjust the microphone level as I speak option that appears in the Choose a Microphone dialog box is now unavailable. This option enables or disables Automatic Gain Control, which is unnecessary when connected through Remote Desktop.

For more information on this option, see Choose a Microphone.

Most hot key values now blank by default

Note: This feature is only included in the Dragon version 15.4 full build. It is not included in the 15.4 service pack.

The default values for most hot keys have been removed to allow you to specify default values that best suit your needs. Only default values for the following hot keys remain:

  • Force command recognition

    Default value: CTRL key

  • Force dictation recognition

    Default value: SHIFT key

Default values are removed from new and existing user profiles. However, if you customized your hot key values, Dragon retains these customizations.

Caution: If you are an existing Dragon customer and you installed the version 15.4 full build by mistake, default values are not removed from the user profiles you upgraded.

For more information on hot keys, see Options dialog box—Hot keys.

User Experience Collection/Data Collection now disabled by default

The User Experience Collection/Data Collection option is now disabled by default in the following locations:

  • On the Help us improve Dragon page in the wizard that appears when you've installed Dragon for the first time and you're creating your first user profile
  • In the Options dialog box—Data tab

You can enable the option at any time.

For more information on User Experience Collection/Data Collection, see About User Experience Collection.

Security enhancements

There is a new section in the Dragon Client Installation Guide on configuring Dragon and its environment securely.

For more information, see chapter 2, "Preparing to install Dragon" in the Dragon Client Installation Guide.

Software versions

Dragon now supports Microsoft Office 2019.


System requirements



  • 4 GB for all operating systems.


Minimum: 2.2 GHz Intel® dual core or equivalent AMD processor. Faster processors yield faster performance.

Free hard disk space

  • 4GB if DVD installation, or
  • 12GB if downloading installation files

Supported operating systems

  • Windows 7, 8.1, and 10, 32-bit and 64-bit
  • Windows Server 2008 R2
  • Windows Server 2012
  • Windows Server 2016


  • Internet Explorer 11 or the current version of Chrome or Edge for online Help and for installation if installing from the Web
  • Microsoft .NET Framework version 4.5.2 or later

    Generally, the .NET Framework is pre-installed on Windows 7, 8.1, and 10 computers. If you do not have it installed, you are prompted to install it during Dragon's installation.

    Nuance does not provide the .NET Framework with your installation; you must download the installation file from microsoft.com.

  • Microsoft Visual C++ 2012 Runtime (full build only)

    If you do not have it installed, you are prompted to install it during Dragon's installation.

  • A DVD-ROM drive if installing from disk
  • An audio input device capable of 16-bit recording for dictation
  • An internet connection to connect to the Nuance Management Center (NMC) Server, if Nuance Management Center/NMS mode is enabled.


Fixed issues

The following issues have been resolved in version 15.4.

  • Automatic Gain Control (AGC) in virtual environments no longer causes deadlocks.
  • Microsoft Outlook and Microsoft Word no longer fail in virtual environments when they are opened by macros, add-ons, or other third-party integrations.
  • Issues in virtual environments where Full Text Control was not available when you launched Microsoft Office are now resolved.
  • Other miscellaneous defects have been resolved.


Update instructions

Before you begin

You can update to Dragon version 15.4 from the following versions:

  • 15
  • 15.1
  • 15.2
  • 15.3

Updating Dragon—Service pack

Use these instructions for the version 15.4 service pack (existing Dragon customers). You do not need to uninstall your previous version of Dragon before installing the new version. The installation process installs your new version automatically.

Do the following to update Dragon.

  1. Obtain the 15.4 service pack from the Nuance Network portal.
  2. Close any open programs.
  3. If you’re running an anti-virus program, turn it off until the installation completes.
  4. Double-click the DPG15DOT4VLA.exe file to run the installer.
  5. Select your language when prompted, and then click OK.

    The update wizard opens.

  6. Click Update.

    The update process begins.

  7. When the update completes, click Finish.


Installation instructions

Use these instructions for the version 15.4 full build (new Dragon customers).

Installing Dragon—Full build

  1. Close any open programs.
  2. Do one of the following:
    • Insert the DVD. The installation begins immediately.
    • If the installation does not start automatically, browse to setup.exe on the DVD and double-click to run it.

    • Download setup.exe or Dragon.exe, then double-click to run the installer. The installation begins immediately and the requested files are downloaded and installed.
  3. Install the Microsoft .NET Framework if prompted.

    You may need to restart the computer after installing the .NET Framework.

  4. Install the Microsoft Visual C++ 2012 Runtime if prompted.
  5. In the Dragon InstallShield wizard, click Next to begin the Dragon installation.
  6. Read the license terms and click the radio button to indicate you agree to the terms.
  7. Click Next to proceed to the next screen.
  8. Enter the product serial number, then click Next.
  9. Select your region and, optionally, select the Advanced check box to change the installation directory.
  10. Click Next.
  11. If you selected the Advanced check box, do the following:

    1. Click Change to modify the installation directory.
    2. Browse to the directory where you want to install Dragon, and then click OK.
    3. Select the check box next to any option you want to change.
    4. Click Next.
  12. Click Install.
  13. The installation begins.

    If you selected check boxes next to options in the Advanced screen, a screen appears, allowing you to customize these settings.

    If your anti-virus program blocks Dragon's installation, turn it off and restart the installation. Turn it back on when the installation completes successfully.


Known issues



Correction dialog does not appear after double-clicking a word in subsequent emails

When the Enable double-click to correct option is enabled and you create a new email message in Microsoft Outlook and dictate the email body, the Correction dialog box does not appear when you double-click a word. This issue does not occur in the first email you create; it occurs only in subsequent email messages.

Workaround: Use the "Correct <word>" command to make corrections.

Microsoft Word and Microsoft Outlook may stop responding In rare cases, Word or Outlook may stop responding for 10-30 seconds in both local and virtual environments, but will recover afterwards.
Unable to load file error when dictating in Google Docs with Internet Explorer

When you attempt to dictate in a GoogleDocs document in Internet Explorer, an "Unable to load file" error occurs.

Workaround: Open GoogleDocs in Mozilla Firefox or Google Chrome.

Attempting to add Google Docs from Learn From Specific Documents results in failure to add all documents from GoogleDocs When you open Learn From Specific Documents and select Add GoogleDocs, a Google Drive Authorization prompt appears, indicating you need to copy and paste an authorization code. This results in a failure to add all documents from GoogleDocs.
Word Online not working in Internet Explorer when Dragon Web Extension is enabled

When you enable the Dragon Web Extension in Internet Explorer and attempt to open a document in Word Online, an error message appears.

Workaround: Use Word Online with Mozilla Firefox or Google Chrome.

Cursor position changes when detaching attachment from Microsoft Outlook email message When you've dictated text in an email message with an attachment and then detach the attachment, the cursor moves up one line.

Files locked error occurs on rare occasions during 15.4 service pack deployment

Applies to: 15.4 service pack only. Does not apply to the 15.4 full build (new customers only).

On rare occasions, a "files or folders are locked" error occurs when you attempt to deploy version 15.4.

Workaround: Close the error message, close Dragon, restart your computer, and then restart the service pack installation.

Dragon becomes unresponsive after unplugging device from Mic-in source or USB port When you dictate with a microphone connected to the system and then unplug it, Dragon may become unresponsive.
Context, Word Properties, and selected Printed Form removed from some words after exporting vocabulary and importing through NSAdmin

When you export a vocabulary containing words with Context and Printed Form and then deploy customized vocabularies through NSAdmin, the Context, Word Properties, and selected Printed Form is removed from some words.

Workaround: Import customized vocabularies using Import Vocabulary or Manage Vocabulary from the Dragonbar.


Upcoming changes

While installing Dragon on Windows Server 2008 R2 is still supported in version 15.4, support for this operating system will be deprecated in the next Dragon release. The minimum supported Windows Server version in the next Dragon release will be 2012 R2.

4/30/2019 11:11 AM