After downloading extract archive xhb-1.0.4.zip (consult http://www.wikihow.com/Extract-Files for help) to a folder and use setup.exe to start installation.
User guide can be downloaded from here however it is included in the install package.
Your antivirus might report the bot as being a virus but this is a false positive. The bot have no connection with your system other than storing its settings and players stats to a file or registry wich is a mandatory procedure for saving. If your antivirus will oppose you will need to have it disabled as long as you use the bot
.