D-Link DSL-2320B - 24 Mbps DSL Modem User Manual page 12

Section 5 - USB Installation
At this point, you can insert the CD-ROM into your
computer's CD-ROM drive and click on the Browse button
to specify the CD-ROM drive of your computer.
To driver is located in the folder named D-Link_WHQL_
USB_Driver. The file name is usbdslur.inf. Click Open
to proceed with the installation.
After the file has been selected, the this screen will appear
verifying the location where the file will be extracted from.
Click on OK to continue.
D-Link DSL-30B ADSL+ Ethernet/USB Modem User Manual 1