How to Find out Why ShoreTel Outlook Integration Plugins are Not Loading

Procedure

How do I enable VSTO error / display alerts

The following windows environment variable can be set for enabling detailed Outlook and VSTO (Visual Studio Tools for Office) error messages when loading VSTO add-ins.

 The 'VSTO_SUPPRESSDISPLAYALERTS' windows environment variable can be set for enabling detailed Outlook and VSTO (Visual Studio Tools for Office) error messages when loading VSTO add-ins.

Steps to set the VSTO_SUPPRESSDISPLAYALERTS variable

  1. Close Microsoft Outlook
  2. Select Computer Properties:
    • Click Windows Start
    • Right-click on Computer and select 'Properties'
       computer-properties-right-click
  3.  Locate System Properties dialog by selecting 'Advanced System Setting'
    advanced-system-settings
     
  4.  Select environment variables
    environment-variables
     
  5.  Select 'New' and enter 'VSTO_SUPPRESSDISPLAYALERTS' with a value of zero (0).
    vsto_suppressdisplayalerts
     
  6. Click 'OK' and restart Microsoft Outlook
  7. Go to Options\AddIns in Outlook and try and enable the ShoreTel Addin. You should now get the full error of why the add-in is not loading:
  8. You will get a pop-up that displays an error and why the add-in is not loading.
  9. If you do not get a pop-up, then try restarting Outlook after you enable the plugin.

Article: 000010057