Message to post my progress with Palm OS.
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Palm Desktop and HotSync (Installation and Configuration):

https://palmdb.net/help/hotsync-windows-10

Installing Palm Desktop 6.2.2 on Windows 10 gave me no problems. This also installs the HotSync Manager.

Before starting Palm Desktop, I set up the HotSync Manager. In this I did have a small problem: the Bluetooth connection option did not appear in the Connections section.

Solution: close HotSync Manager and activate Bluetooth in Windows Settings. When I opened the HotSync Manager again, I was able to see and activate the Bluetooth connection option.
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When I have the phone, I will install the Aceeca 64-bit drivers and link the phone with HotSync. As it was one of the last Palm phones, I don't think I need to buy a serial to USB adapter.
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Next step (PowerSDHC):

https://palmdb.net/app/powersdhc

Connect your Palm to the internet via a Windows computer:

https://palmdb.net/app/softick-ppp

Hacking tools:

https://palmdb.net/app/hackme

https://palmdb.net/app/hackmaster