Tested on: Debian Etch, Lenny/Sid (Testing), kernel 2.6

1. Plug WG111 and type lsusb to verify hardware is plugged. You should get something like:
Bus 003 Device 002: ID 0000:0000 NetGear, Inc. WG111 WiFi (v2)
Bus 003 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000

2. On root shell, type:
apt-get install module-assistant
m-a prepare
m-a a-i ndiswrapper
modprobe ndiswrapper
   Now ndiswrapper module is loaded. (if you got a FATAL: Module ndiswrapper not found fatal error, repeat these steps)
3. If interface is successfully modprobed, then type
   update-modules
   To create ndiswrapper module config files.
4. Add
   ndiswrapper
   to /etc/modules to load this module on boot.
5. 
apt-get install wlassistant ndisgtk ndiswrapper-utils
Install some utilities to configure wireless interface.
6. Run ndisgtk (or type ndiswrapper -i /media/cdrom0/ndis5/netwg111.inf, where cdrom0 is Netgear driver disc)
7. Select Netgear driver from CD-ROM (netwg111.inf): it’ll be copied automatically to /etc/ndiswrapper
8. Copy other files under /media/cdrom0/ndis5 in /etc/ndiswrapper/netwg111/
9. If interface is not detected, type ndiswrapper -m to write modprobe config files for it.
10. Use gksu network-admin or gksu wlassistant to configure your wireless connection.

Tip: If after system upgrading you cannot access to wireless network, repeat step (2).

See also:

• module autoloading under 2.6