Connectify is well know Hotspot software for Windows PCs. If you dont have router at your place but still want to share your PC internet to other devices like Tablets, Smartphones or even other Laptops then you can just install Connectify on any of your Windows PC and make it Hotspot. Just make sure that the PC on which you are installing this must have Wireless connectivity.
The file given below for download is specially for the latest operating system, i.e. Windows 8. Earlier all versions of Connectify wont work with this system due to incompatibility. So if you are using Win 8 download Connectify from below and make your laptop/desktop a Hotspot.