Install The 3Com Wireless Pci Adapter Driver - 3Com 3CRPCIG75-LAT Quick Installation Manual

4 Insert the PCI Adapter into the slot, and then press it down
gently until it seats snugly in the slot. See 2 in Figure 2.
5 Secure the PCI Adapter into the slot using the screw that you
removed earlier.
6 Replace the computer cover.
7 Attach the antenna to the PCI Adapter's antenna connector, and
then turn the threaded part clockwise to secure it. Do not
overtighten.
For optimal reception, position the antenna so that it is straight
up.
8 Reconnect the power cord to the power source, and then turn
on your computer.
9 If the Found New Hardware Wizard appears when Windows
starts, click Cancel.

Install the 3Com Wireless PCI Adapter Driver

Your PCI Adapter includes a CD that contains the 3Com Wireless
Driver. Running the PCI Adapter setup program installs the
adapter driver.
This section first covers installing on Windows XP and then
discusses installing on Windows Vista.
Install the 3Com Wireless PCI Adapter Driver 7