if something is not working make sure you have 
.net framework 4 = http://www.microsoft.com/cs-cz/download/details.aspx?id=17851
and
c++ redistributable = http://www.microsoft.com/en-us/download/details.aspx?id=5555
installed

and irrKlang.NET4.dll in same folder as QuickChatMaker.exe