Which version of Windows ?
Check Windows Control Panel, System, Hardware, Device Manager and see if it lists a wireless network adapter.
It may be a good idea to consult the manual (or download it from IBM or Lenovo) as any wireless adapter may have a physical switch on the case or use an Fn key combination.
this is a windows 98 system
it originally only showed the dial-up network adapter
I tried to install a linksys wireless-g usb adapter that I had on hand just to see what would happen; it installed okay, however, there was an error when I tried to use it so I uninstalled it
I'm just trying to figure out if there is a pcmcia card or a usb wireless device that I can use to get this laptop on the internet. Otherwise, I don't have much use for it, unless anyone has other useful suggestions.