[D.J.]

I was just curious if I needed a "wireless software" for my laptop after doing a recovery on my laptop? I have a feeling that after perform the recovery, my laptop will no longer be able to detect my wireless router.

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There is no need for a "wireless software," as long as the wireless connection in the Network Connections page (go to Control Panel then select the Network Connections icon) is enabled (you'll find a wireless connection icon on that page and then below it will say connected), and that the wi-fi switch is on (you can usually find this switch around the side of the laptop, a light beside the switch would lit up indicating that wireless is enabled) then you're laptop will be able to see your wireless router again.

[kamille316]

There is no need for a "wireless software," as long as the wireless connection in the Network Connections page (go to Control Panel then select the Network Connections icon) is enabled (you'll find a wireless connection icon on that page and then below it will say connected), and that the wi-fi switch is on (you can usually find this switch around the side of the laptop, a light beside the switch would lit up indicating that wireless is enabled) then you're laptop will be able to see your wireless router again.

[Neil Jones]

XP has far better built-in wireless networking support/features than any third party software I've ever seen.
It is a strong recommendation to install Service Pack 2 though as it fixes an issue with wireless connectivity after a restart and also overhauls the wireless interfaces to be much more user-friendly.