The same client who needed a brighter panel on her RC5200 now needs it updated and I've got two computers, both of which seem to have no COM ports. Seems strange to me, but I haven't USED a com port for fifteen years...

Anyway, I've got a Thinkpad T420 with Windows 7 and a Thinkpad X1 Yoga with Windows 10. When I try to download to the remote it says it's not connected... no lie! And when I look for COM ports, each one tells me it has none.

Do you happen to have experience programming an RC5200 with either of these beasts?

Ah, yes, I also have a Dell Desktop with Windows 10 that I haven't fired up for months... it's time!

Thanks for any help you can give me.

Ernie,
Yes, "That Ernie". :-) Long time no talk.

You can get a USB to serial adapter and use that. The Classic Pronto FAQ has some notes. The key thing for the Pronto is that it is connected to the first COM port.

By first, consider you have a Mouse on COM2 and then have a USB2Serial as COM4, You will need to modify the driver config to make USB2Serial show up as COM1.

Lyndel, thanks for the input. I'm stuck in the process.

I've got a USB to serial adaptor that worked on the XP machine I had.

But the Windows 7 and 10 machines....
I've got a new Thinkpad X1 YOGA with Windows 10. Under PORTS it's got COM 5, labeled Communications Port, has an icon that looks like a serial connector, and has a yellow triangle with ! inside. I changed that port to COM 1 and there's no change.

I've got a Dell Latitude E5400 with Win 7 and it shows no COM ports at all.

Is there a general set of things to try to make these work?