Hi there, I recently formatted my laptop, installed the WL-100G with these 3.70 Broadcom drivers (had to do this manually, Windows says there is no driver in the extracted folder containing 3.70) and hey, I HAVE AFTERBURNER!

you can check the settings of your driver in the hardwarelist, on some tab you can edit the features, and enable Afterburner.

If you have previous driver installed, windows will use that instead of 3.70!!! so thats why most users think the wl-100g doesn't have Afterburner.