@Bazinevis
You can check every module of interest yourself.
The documentation page either claims it to be LGPL, GPL or Commercial use only.
Also AFAIK when using the Online Installer with your non-commercial community account, you only get to see modules and features that are available for you.
I don't remember that it is possible to deselect Qt Creator from the online installer at all. So, I highly doubt that you don't have Qt Creator installed.
The default location is C:\Qt\Tools\QtCreator\bin\qtcreator.exe. However, it looks like you have changed C:\Qt to C:\Qt-framework.
Well, if you've been using it already for so long and you didn't find it frustrating then it's okay, my comment was only for newbies (and you're no longer in that category after months of using it)
After different tests and building processes I'm able to build and run an application with WebKit on Windows 10 with MinGW.
I simply replaced original shipped WebKit with a fresh one from git repository.
Working software versions are:
MinGW-w64 5.2.0 i686 posix dwarf
OpenSSL 1.0.2d
zlib 1.2.8
ICU4c 55.1
Qt 5.5.0 (with fresh qtwebkit module from git)
I'm using Windows 10 64bit with both Windows SDK installed and DirectX SDK (installed with DXSDK_Jun10.exe), but I think that it's possible to disable angle and force OpenGL to desktop in order to avoid installing MSVC and DirectX.
I'm trying to compile the same environment on 64bit. I'll update this thread on finish.