Support Information:
Device Type: Modem / ISDN
Manufacturer: D-Link Systems
Model: du-560m
Interface: USB
Operating System: Linux
Age of Device: Not specified
FCCID:

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=327&qa5=10&qa7=1801&dp=3&qm0=du-560m&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=D-Link+Systems+Modem+%2F+ISDN++du-560m+Windows+Vista+) | Research manufacturer D-Link Systems (http://members.driverguide.com/index.php?action=getinfo&companyid=327)

DU-560M FAQ page: http://www.dlink.co.nz/tech/faq/modems/du560m.htm

Driver page: http://www.dlink.com.au/tech/Download/download.aspx?product=DU-560M&revision=REV_A&filetype=Drivers

Please note that D-Link does not support this modem in Vista OS or Linux. You listed both OS's.