HubSpot Sales for Outlook install error: 'Application cannot be started. Contact the application vendor.'

Last updated: October 4, 2023

You may encounter the following error messages when attempting to install the HubSpot Sales Outlook desktop add-in:

Application cannot be started. Contact the application vendor.

To resolve this error:

Uninstall the HubSpot Sales Outlook desktop add-in.
Press CTRL + ALT + DEL and open Task Manager, then end the SidekickTrayWPF.exe process.
Navigate to Control Panel and select Uninstall a program or Add or remove programs.
Search for and uninstall HubSpot Sales for Windows.
Install the HubSpot Sales for Windows tray app.

Was this article helpful?

This form is used for documentation feedback only. Learn how to get help with HubSpot.