The New USB cable for Edge2 is actually £100 or more and it does not work with older than 4.0. The old cable is gone or hard to find. The ECP printer port works just fine on my i7 HP EliteBook 8560P Laptop with docking station. For the desktop I will find some old printer card somewhere with the ECP jumper on it for £0.01. They selling them awful expensive on eBay.
I am already running and printing with 2.61 and now 1.56 on Windows10 machines.
I have Flexi too which prints with any cable, network adapter or to network shared generic printer location, but it is not about me.
It is about my clients who prints with the same printer and software for 30 years and don't want to learn anything new. There are a lots of them.