running beta 6 with beta 3 libraries wont work. im using a different set of libraries to see if it fixes your windows 10 issues. thats why i included new libraries with the installer for you; so please do use the included libraries that come with beta 6.

sorry about the platform plugin issue, that was an issue with the installer itself (first time using it). you can correct it yourself if you want, it'll be fixed in the next installer. you need to make a 'platforms' folder in c:\program files\eehack and place the qwindows and qminimal dll files in there.