Windows 7 - Printer usable in programs, but not visible in devices

I installed a printer (HP deskjet 720C) on my windows 7 64bit. in the HP forums is a patch where it says how to install it, for it won't work for this printer for a 64 bit version of windows 7.

After doing this i can use my printer perfectly in for instance MSword, i see the printer, can print with it, change the printing properties but:

If i go to hardware and devices it is not shown there!

Now i can't change the name, or deinstall it if i have 2 versions of the driver installed.

So, is there a way to make this printer visible in the devices window? Or is there another way to maintain the printers (names, install/de-install etc.)

thanks for helping!

Not sure if this is of any use to you................?

Installing the Product with the USB Cable and Using the Windows Update Driver or the Driver Located in the Windows 7 Operating System HP Deskjet 720c Printer - HP Customer Care (United States - English)

Thanks, but the printer has no usb possibility, so srial connection only (lpt) and a patch from HP to get it working.

like i said, i can use the printer in word for instance, but not in devices.

BUMP. any reactions? How can i delete a printer that's not visible in devices?