Support Information:
Device Type: Modem / ISDN
Manufacturer: Planet
Model: RTL8139C
Interface: IDE
Operating System: Windows 98
Age of Device: Not specified
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=1316&qa5=10&qa7=1300&dp=3&qm0=RTL8139C&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=Planet+Modem+%2F+ISDN++RTL8139C+Windows+98+) | Research manufacturer Planet (http://members.driverguide.com/index.php?action=getinfo&companyid=1316)

RTL8139C has nothing to do with MODEMS. It's a network adapter chipset.

http://www.realtek.com.tw/downloads/downloads.aspx