Does anyone else using Zenworks have issues with WMS ST Notif Window preventing users from shutting down at the end of the day?

I am aware of the Outlook problems that cause this, which we have. I do not run Outlook on my PC, I run Thunderbird and do not have this issue.

However I am wondering if Zenworks could be launching some script or executable which is hidden and awaiting a response, leading to the WMS ST Notif Window error on shutdown.

Am I alone? Does ZCM handle this issue perhaps?