Canon VB-H43 Operation Manual page 21

Important
Note that when IE Enhanced Security Configuration is turned
back on, the [Do not save encrypted pages to disk] checkbox
also becomes enabled.
Enabling the Sound Function to Use Audio
In Windows Server 2008/Windows Server 2012, the sound
function is disabled by default.
To receive audio with the Viewer, follow the steps below to
enable the sound function.
1 Open [Control Panel] and click [Hardware].
Note
If [Control Panel] is in the classic view, double-click [Sound].
Click [Sound].
2
3 When the [Audio Service Not Running] message
appears, click [Yes].
The [Sound] dialog box appears.
4
Click the [Playback] tab to confirm that an audio device
has been installed. (If no audio device is installed, refer
to your PC manual.)
Notes on Operating Environment
1
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