Hi, After having the same problems and solutions than Mukesh (copying missing DLL from old dream version and Installing QT5) I tried pointing the qwindows.dll path in qt.conf but it's not enough precise for me and I fail to run Dream; plse can you precise : 1 - What should be the content of the qt.conf file (a copy of the text of this file in the answer or a screenshot of its content would be perfect); 2 - In which folder should be stored this file ? Thank's a lot for you support and congratulations...