Continuum presents an error when starting up.
"Either there is no default mail client or the current mail client cannot fulfill the messaging request. Please run Microsoft Outlook and set it as the default mail client"
When Outlook is installed on the Workstation, Continuum will try to make a connection to Outlook when it starts up. If Outlook has not been configured as the default mail client then it can't make this connection and presents the error.
Either make Outlook the default email client or uninstall from the Workstation. See Microsoft KB here that describes how to set your default email client.