Fix Multi-PDF issue from Win2019 DFS share to Win10 clients..... please.
The DFS bug has shown it's head again. Win 2019 servers offering DFS fileshares to Win10 clients will no longer allow multiple PDFs to be opened from the OS interface, because of Protected Mode.
Any other combination works fine (non-Win2019, non-Win10, non-DFS shares, disable Protected Mode).
Now that the vastly popular Win 2008r2 is out of support, many more organizations are upgrading to Win 2019. Disabling Protected Mode via registry GPO is a poor workaround.