This app requested runtime to terminate in unusual way

[OldGrantonian]

ISSUE:

I tried to launch CintaNotes in usual way, by clicking the desktop icon. That failed.

I got the message:

"Runtime error: This app has requested the runtime to terminate it in an unusual way"
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PREVIOUS ACTIVITY:

Before trying to launch CN, I was trying to install the app "StartAllBack".

Current Windows behaviour is that identical taskbar icons are joined up in chains. StartAllBack prevents joining in chains - as in previous versions of Windows. So if I have a complex procedure, involving several different apps, I can simply arrange the icons from left to right in the correct sequence.

I'm 81 years old. So when similar apps are joined up in chains, I can lose track of my workflow. I forget what I've already done, and what I still have to do.