{}

Our Brands

Welcome to the Schneider Electric Website

Welcome to our website.
How can we help you today?
Chrome constantly prompts users with "Install Silverlight" screen.

Issue:
When attempting to view webpages in Chrome users are constantly prompted with the "Install Silverlight" screen.

Product:
EEM 4.0 R2, EEM 5.0
Struxureware Power Monitoring 7.0.x
Power Monitoring Expert 7.2.x
Power Monitoring Expert 8.0

Environment:
Chrome 42.x
EEM 4.0 R2, EEM 5.0
Struxureware Power Monitoring 7.0.x
Power Monitoring Expert 7.2.x
Power Monitoring Expert 8.0

Cause:
With the release of Chrome 42 (released Apr 14/15) Silverlight is moving closer to becoming unsupported.  Chrome 42 disables by default the NPAPI API on which Silverlight runs in the browser, requiring users to re-enable the API if they wish to use Silverlight content in Chrome.  It's expected that support for NPAPI will be removed in a future version of Chrome altogether.
The update for Chrome 42 is an automatic process.  The patch is automatically download and applied with the next close/open of Chrome after April 15.
After the update, Silverlight will not function at all (by default).

Resolution:
*Warning: This article contains information about editing the registry. Improper changes to the registry can permanently damage the operating system. Always backup the registry before making any changes.*

The following registry key needs to be inserted or changed as follows:

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome\EnabledPlugins] "1"="java"

This can be accomplished in several ways.

Method 1:

  1. In Chrome, enter the following in the navigation bar:   chrome://flags/#enable-npapi

  2. Look for the following entry:  Enable NPAPI Mac, Windows (Enables the use of NPAPI plugins. #enable-npapi)  (should be highlighted at the top)

  3. Click "Enable"

  4. A toolbar at the bottom of the page will ask to re-launch the browser.

  5. Once this re-launch occurs, all will work as before (but the user must re-install Silverlight)

Method 2:

Using Command Prompt cmd.exe (as administrator) execute the following command:
reg add HKLM\software\policies\google\chrome\EnabledPlugins /v 1 /t REG_SZ /d java

Method 3:

Using regedit.exe (as administrator)

Navigate the registry, creating the keys as necessary. Inside EnabledPlugins, create a new REG_SZ value with name 1 and value java.

*NOTE: Also by using typical enterprise policy tools an administrator could insert this registry key into all the machines on a domain.

Schneider Electric Australia

Chrome constantly prompts users with "Install Silverlight" screen.

Issue:
When attempting to view webpages in Chrome users are constantly prompted with the "Install Silverlight" screen.

Product:
EEM 4.0 R2, EEM 5.0
Struxureware Power Monitoring 7.0.x
Power Monitoring Expert 7.2.x
Power Monitoring Expert 8.0

Environment:
Chrome 42.x
EEM 4.0 R2, EEM 5.0
Struxureware Power Monitoring 7.0.x
Power Monitoring Expert 7.2.x
Power Monitoring Expert 8.0

Cause:
With the release of Chrome 42 (released Apr 14/15) Silverlight is moving closer to becoming unsupported.  Chrome 42 disables by default the NPAPI API on which Silverlight runs in the browser, requiring users to re-enable the API if they wish to use Silverlight content in Chrome.  It's expected that support for NPAPI will be removed in a future version of Chrome altogether. 
The update for Chrome 42 is an automatic process.  The patch is automatically download and applied with the next close/open of Chrome after April 15. 
After the update, Silverlight will not function at all (by default).

Resolution:
*Warning: This article contains information about editing the registry. Improper changes to the registry can permanently damage the operating system. Always backup the registry before making any changes.*

The following registry key needs to be inserted or changed as follows:

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome\EnabledPlugins] "1"="java"

This can be accomplished in several ways.

Method 1:

  1. In Chrome, enter the following in the navigation bar:   chrome://flags/#enable-npapi

  2. Look for the following entry:  Enable NPAPI Mac, Windows (Enables the use of NPAPI plugins. #enable-npapi)  (should be highlighted at the top)

  3. Click "Enable"

  4. A toolbar at the bottom of the page will ask to re-launch the browser.

  5. Once this re-launch occurs, all will work as before (but the user must re-install Silverlight)

Method 2:

Using Command Prompt cmd.exe (as administrator) execute the following command:
reg add HKLM\software\policies\google\chrome\EnabledPlugins /v 1 /t REG_SZ /d java

 

Method 3:

Using regedit.exe (as administrator)

Navigate the registry, creating the keys as necessary. Inside EnabledPlugins, create a new REG_SZ value with name 1 and value java.
 

*NOTE: Also by using typical enterprise policy tools an administrator could insert this registry key into all the machines on a domain.

Schneider Electric Australia

Explore more
Range:
Explore more
Range:
Users group

Discuss this topic with experts

Visit our Community for first-hand insights from experts and peers on this topic and more.
Users group

Discuss this topic with experts

Visit our Community for first-hand insights from experts and peers on this topic and more.
Explore more
Range:
Explore more
Range:
move-arrow-top
Your browser is out of date and has known security issues.

It also may not display all features of this website or other websites.

Please upgrade your browser to access all of the features of this website.

Latest version for Google Chrome, Mozilla Firefox or Microsoft Edgeis recommended for optimal functionality.
Your browser is out of date and has known security issues.

It also may not display all features of this website or other websites.

Please upgrade your browser to access all of the features of this website.

Latest version for Google Chrome, Mozilla Firefox or Microsoft Edgeis recommended for optimal functionality.