While waiting for the print server, I had a look at the unzipped files of driver version 14.1.0.
Interestingly enough, under drivers, there are installation folders for Windows 2000.
One is under dot4 containing several dll and sys files.
Several readable configuration files contain options for Windows 2000.
It is very obvious, that the actual version is updated from a previous version, which did support Windows 2000.
While it is fully comprehensible to stop the support in the most recent version. But it would cost HP nothing to allow the download of previous versions. It would only make HP a customer friendly company.
It is very unfriendly and irrational to arbitrary withhold the older versions. And it is also ridiculous, because everybody owning an older installation disk has, what I need. But my friend lost the disk.
HP has no reason to help Microsoft to make profit by selling Windows upgrades. Unless HP is owned by Microsoft, which I am ignorant of.
After spending an entire day to install the printer in vain on a supported system, I am angry, that the easiest solution is not available.