I'm trying to install a lower-version of Flash Player on IE11 for debugging purposes.
But when I run the ActiveX (flashplayer_15_ax_debug.exe) installer from Adobe, I get this error:
Is there any way to bypass it so that I can test an older FP version?
Flash Player for IE in Windows 8/8.1 is updated via Windows Update now
Why not test it on a VM where there are versions of IE that have Adobe Flash Players as "plug-ins"?
You can use this VM tool available in modern.IE site:
https://www.modern.ie/en-us/virtualization-tools#downloads
or
test it on a different browser where Adobe Flash Players are "plug-ins"