Creative Labs hides their drivers for some unknown reason. I found this at modemblaster.com rather than Creative Labs. It includes the PCI serial driver. Win 2000 did not autodetect the modem or port I had to go to system first and update the PCI serial port, which was marked with a yellow question mark. After it installed the driver, then it found the modem, and installed it.
The following files are found inside the driver download file.
|1004164k.cat||24 bytes||3 Nov 1999|
|disk1||27 bytes||3 Nov 1999|
|rss1004_w2k.inf||35.1 KB||20 Apr 2000|
|WINACPCI.sys||900.5 KB||3 Nov 1999|