Adobe Flash Updates Install Behavior When Installed Manually

Manual install of IE active version:

1. Successfully installed even when Flash is in-use
2. didn’t result in any browser prompts
3. didn’t required machine reboot
4. IE loaded the latest version after re-launching the IE browser
5. ARP entry got updated and no older version shown/existing

Manual install of Plugin version for other browsers like Firefox:

1. Installer reported below error when Flash is in-use
2. Firefox has to be exited for Flash Plug-in install