//window -c @abc | window @abc | window -a "status window" | window -r "status window" | window -g1 @abc
Update: I did a fresh install of mirc 7.51 into a fresh folder, and this series of commands enabled echo -m to highlight the @abc window in red like it's supposed to. I then quit that fresh mirc and copied the mirc.ini from the mirc folder where it wasn't turning red, and the bug reappeared.
So now i get the fun task of pasting changes from the 'bad' mirc.ini until i get the problem to show up again.
Edit: Turns out it was the unchecked mirc-options/display/always-highlight-on-message. So, without that box checked, echo -m only highlights when mirc considers the window to not be visible - either from the active window being a different window that's maximized, or if the target window is minimized, or if mirc isn't the active App.
