Allready posted this directly to Flower, but for visabilty here again:
There is some error with the setup.exe. As soon as I try to install, I get some error with setup.exe, appearently it's "missing". When unpacking the .rar my antivir deletes the setup.exe immeadiately. With disabling I get the setup.exe properly, but the startup.exe doesn't recognize that file. Most likely it's wrong or sth. like this. My Japanese is really bad, so I'm not 100% sure, what's exactly the problem.