3Com HomeConnect 3CP4130 User Manual page 59

Updating your modem software
Once the Instant Update Utility has been installed on your PC, it will monitor the Internet
for updates to the basic operating software (called a .nac file) for your Dual Link Modem
and download an update file when one is found. This file will be downloaded to your PC
and stored in a folder on your hard drive. By default, the file location is: C:\Program
Files\3Com\Dlcc\Update. You can then download it to your Dual Link at your
convenience.
To retrieve a downloaded .nac file and install it on your Dual Link, first open your Dual
Link Modem Settings Screen.