Cisco AIR-PCI340 Installation And Configuration Manual page 189

Chapter 9 Routine Procedures
Figure 9-5
Step 3 If you want to prevent the driver (when it loads) from installing the firmware with which it is bundled,
thereby allowing the client adapter to retain its current firmware version, make sure the Automatically
Load New Firmware When NDIS Driver Is Updated check box is not checked.
Note
Note
Cisco Aironet 340, 350, and CB20A Wireless LAN Client Adapters Installation and Configuration Guide for Windows
OL-1394-07
Aironet Client Utility Preferences Screen
If you want the driver (when it loads) to install the firmware with which it is bundled if it is newer
than the firmware that is currently installed in the client adapter, make sure the Automatically
Load New Firmware When NDIS Driver Is Updated check box is checked.
When you upgrade your client adapter's firmware using ACU, the Automatically Load New
Firmware When NDIS Driver Is Updated parameter becomes unchecked automatically to
prevent the newly loaded firmware from being overwritten by the driver. If you want to enable
this parameter, you must recheck the check box.
Client Adapter Software Procedures
9-11