Compatibility mode did not work; I have another computer, which still has the I.E. 11 feature available. I installed QBP 2015 thereon and it's working fine. For now.
I did find/read an Intuit article on their own 'custom internal browser' and see that it works with 2020, 2021, 2022 only. "All you need to do is.... You can also migrate to QuickBooks online...." More Barbra Streisand. Found this here: Use our built-in browser in QuickBooks Desktop (intuit.com)
I believe I've crossed a few notes that suggest the 2020 desktop version is the last one that will work without ever having to subscribe: do you know if this is true? I don't use the payroll module and I've managed to run my business for 23 years without needing a tether to Intuit. Given that I've only a very few more years remaining, I see absolutely no reason to start now.
Thank you for all of you help. P.S. I was not able to uncover the 'private contact' means you mentioned above.
