I have installed the windows XP on mine system and I am using the Intel proset/wireless wifi. Mine system works perfectly and I wanted to change to 87112 wzc and I donít know how to do this. I have tried lots way to switch the 87112 wzc but it doesnít helped me to solve mine issue. Can anyone suggests on this and so that I can solve mine issue. I am using the dell latitude d600. Please can anyone help me out from this issue and so that I can work with 87112 wzc.