Virtual KNX is not working

hello, i download virtual KNX but it looks like not a complete version or there is a bug.

first I get just one file the zip file and when I open the program it Is looks like this ..

how i can solve this problem?

another question, now I have the free version EST5 with just 5 devices for each project, how I can use more devices? 

i know i should buy licenses, but i get a USB knx interface is that coming with these licenses to use?