My WiFi Router 3.0 helps turn your laptop into your own public or private Wi-Fi hotspot. You can allow or blacklist users under Connection.
Download free wifi hotspot software - Mars WiFi - Free WiFi HotSpot Mars WiFi Software - The Best Free Windows WiFi HotSpot Software!, and much.
List of 5 best WiFi Hotspot software for Windows XP, 7, 8 PCs,Laptops. Also, there's a quick tutorial for creating hotspot without installing any software.