If you getting Error 39 while installing the driver for Aztech WL230USB in your Windows XP Sp3, the solution is below.
1. Rename the WlanUZXP.SYS in ndis5x folder to WlanUZGV32.sys
2. Delete the ndis6 folder (created when you extract the WL230USB Drivers v3.x)
3. Then update driver from device manager at the Control Panel
Good luck!
