Install GoToMeeting in Microsoft Outlook in Silent Mode - GoToMeeting

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Install GoToMeeting in Microsoft Outlook in Silent Mode

The silent installation enables an administrative install of the Outlook plugin as a company-standard application. The process allows an IT admin to obtain a Trusted Publisher certificate for the plugin and deploy that to user devices, and then to create an installation package that will automatically install the plugin on user devices. The certificate must be renewed on an annual basis.

Once the plug-in is installed on a user's account, it updates automatically. Each time Outlook is restarted, the plug-in checks for updates, and if they are available, makes the updates automatically without user notification.

System Requirements

Register for Certificate Access

Get Currently Valid Certificate

Disable Notifications in Podio as Needed

Deploy Certificate

Configuring the Silent Mode Installation Package

Install the Trusted Publisher Certificate Manually

Use MicroSoft Management Console to Install Certificate

System Requirements

  • Windows XP or newer
  • Outlook 2010 and Outlook 2013 (must be set up to use Exchange as the mail system)
  • Access to the Internet
  • Visual Studio 2010 Tools for Office Runtime*
  • Visual Studio (VSTO) Installer is installed on user machines. (MicroSoft Office typically installs this as part of the Click-Once installer. To download it, go to the VSTO Installer. If the link fails, search for: ‘download visual studio 2010 tools for office runtime’.)

* Required for Outlook 2016 only

Register for Certificate Access

To obtain the currently valid Trusted Publisher certificate, the admin must first request access to the Citrix Certificate Store. The certificates are valid for one year. Registering for access ensures you receive an email alert from Citrix when a new certificate is available. This enables you to update certificates on user devices before they expire.

IMPORTANT: If certificates expire on user devices, errors are generated and the users' lose their ability to use the plugin to schedule and launch meetings until a valid certificate is in place.

1. Go to Podio: and complete the registration form. Click Submit.

2. You will receive an email confirmation that will permit you to proceed to the next step.

Get Currently Valid Certificate

Once you have registered for access to the Citrix Certificate Store, or when a new certificate is available, you will receive an email directing you to the Citrix Certificate Store where you can download the latest certificate. You can then use your company-standard delivery tools or scripts to deploy the certificate to user devices.

NOTE: If there is more than one certificate that is currently valid, download both. A conflict between plugin versions and certificates can exist in some cases. Downloading both certificates eliminates that possibility.

1. Click the button in the email you received to access the Podio space, Citrix Signing Certificate (

2. In the Podio space, choose Public Certificates.

3. In the list of public certificates - there will be no more than two - check the Valid dates. Click on the latest certificate. The certificate download page displays.

4. Select the CitrixOnline.cer file. The file downloads to your local drive automatically.

Disable Notifications in Podio as Needed

Because this Podio space is only needed to provide you access to the latest certificate, and Citrix will email you directly when a new certificate is available, you may want to disable Podio notifications. To do this:

1. Open Podio and click on your profile menu in the upper right corner.

2. Click Account Settings, and choose Email & Notifications.

3. Uncheck all notifications, and choose Save.

Deploy Certificate

Deploying the certificate(s) consists of copying the file or files to local machine stores and then adding them to the Trusted Publishers store for both the machine and the current machine user. Most IT departments have tools that accomplish these steps. The deployment of the certificate(s) is described here as a separate step, but you could also incorporate it into the silent install described in the next section.

To test this, or if you are scripting this install, you could use a script with syntax something like the following (the script will pick up all certificates in the directory):

@Certutil -addstore -enterprise -f "TrustedPublisher" "CitrixOnline*.cer"

If you want to step through these processes manually to test them or for a problem machine, see Install the Trusted Publisher Certificate Manually.

Configuring the Silent Mode Installation Package

The silent mode installation of the GoToMeeting Outlook Plugin can be accomplished using your standard IT deployment tools. Citrix provides an installation package that includes sample scripts and the Plugin installer that you can use or modify as needed.

The scripts provided, and their functions, are:

ImportCertificate.cmdCopies the certificate to the local machine and adds it to the Trusted Publishers store for the machine and current user.
Test_SilentPluginInstallation.cmdSample install of the GoToMeeting Outlook Plugin.
TestandInstall_G2MOutlookPlugin.cmdSample boot script to check for the plugin, and if it is absent, to install it. Also disables existing, older version of the plugin.
TestandInstall_G2MOutlookPlugin.ps1The sample boot script in Windows PowerShell format.
CitrixOnline.cerThe certificate. Must be acquired from the Citrix Podio site.

1. If you haven't already, obtain the CitrixOnline.cer certificate.

2. Download the Citrix install package. The contents of the package are:

  • ImportCertificate.cmd - this picks up a qualified certificate files in the directory location
  • Readme.txt
  • Test_SilentPluginInstallation.cmd
  • TestandInstall_G2MOutlookPlugin.cmd
  • TestandInstall_G2MOutlookPlugin.ps1

3. Create the install model that works for your environments. The full install should accomplish the following:

  • Execute ImportCertificate.cmd as administrator to copy and install the certificate(s).
  • Optionally check local machines on boot for the presence of the plugin using the equivalent of TestandInstall_G2MOutlookPlugin.cmd.
  • Install the plugin in silent mode as in Test_SilentPluginInstallation.cmd, or TestandInstall_G2MOutlookPlugin.cmd.
  • Disable any older plugins.

If you are using a boot script on local machines, the syntax would be something like:

"C:\Program Files (x86)\Common Files\microsoft shared\VSTO\10.0\VSTOInstaller.exe" /install outlook/G2M/GoToMeetingOutlookCalendarPlugin.vsto /silent

This completes the silent mode installation instructions. If you have difficulties, questions, or comments, please either comment on this page, or contact

The remaining sections of this article provide manual steps for the certificate deployment process.

Install the Trusted Publisher Certificate Manually

If there is a problem installing the Trusted Publisher certificate, or if the install is to be performed locally on a user device, you can complete installation manually.

1. Locate the Citrix Signing Certificate, CitrixOnline.cer, and double-click on the file to check the expiration date. The certificate is valid for roughly one year. Note the date of expiration and set a reminder to download a new silent install package with a new certificate a month or so prior to the expiration of your current certificate.

2. If the certificate is valid, click Install Certificate. Choose Next to continue.

3. In the Certificate Store window, choose Place all certificates, and click Browse. In the Select certificate store dialog, select Trusted Publishers and click OK, then click Next.

4. In the Completing the Certificate Import window, make sure the Certificate Store Selected by User is selected, and choose Finish.

5. After a few moments, you should see an "Import was successful" dialog box. Choose OK to end the install process.

Use MicroSoft Management Console to Install Certificate

1. In your computer's Start menu, type mmc in Search programs and files and press Enter.

2. If you are asked for permission to proceed choose Yes. The management console opens.

3. Open File | Add/Remove Snap-in.

4. In the Add/Remove Snap-in box, select Certificates and then click Add.

5. Click Computer Account, and then click Next.

6. Click the Local computer (the computer this console is running on) option, and then click Finish.

7. Repeat steps 4 and 5, this time choosing My User Account.

8. Click Close, and then click OK. If you are asked to Save the console settings, choose Yes.


Install the Outlook plugin

Schedule a meeting with the Outlook plugin