Okay, I see that this tray tip notification was added in 7.71.
If you minimize mIRC, exit, and run mIRC again, it will open minimized. mIRC remembers whether it was visible or minimized when it last exited and displays itself in the same state when it is run the next time. This has always been the case.
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I have not been able to reproduce the issue that you originally reported, ie. that if mIRC is visible, and you restart Windows, when you run mIRC later, that it is minimized to the Windows tray. I tested this with different versions of Windows, including Windows 11 with the latest updates.
Yes, this must be happening because in general mIRC is failing to save mIRC.ini for me and this startup/tray is just a side effect of that. I know you've spent a lot of time on preventing loss of mIRC.ini before, and as it's not causing me any major problems we can dismiss the system restart scenario and generally consider that mIRC is minimizing to tray as designed.
If mIRC starts minimized to tray, and Windows places its icon in the hidden tray area, mIRC will display the tip.
But it's not being placed in the hidden tray area, the icon is always visible and the tooltip still is displayed. If you can't isolate the notification to when the tray icon is only in the hidden area, is it possible that it respect the global 'Enable tips' option, or can a new option be added to disable this tip specifically?
You said "latest updates", but are you on at the least the build # from my original post? It's only a few days old and might be rolling out in waves. That said, maybe the Windows update isn't the cause. But 5 months is a long time for me not to have noticed this before. And there were specific tray changes in the update:
