Hi again guys,

Today in a few hours I finally solved this problem and I thought about sharing what information I got meanwhile.
I was always getting a blank white window because the app was searching for some files but couldn't find them.
It was strange that on development machine everything was working. So I came with idea to add an "_" to the Qt's folder name (like "C:\Qt_"), then rerun app. Voila! blank white window. Revert renaming and start "digging" for a specific folder by adding the "_". I found that app was looking for these 2 folders:
C:\Qt\Qt5.1.1\5.1.1\mingw48_32\qml\QtQuick.2 -- http://qt-project.org/doc/qt-5.1/qtd...t-windows.html didn't mention about this
C:\Qt\Qt5.1.1\5.1.1\mingw48_32\qml\Qt -- why this folder? because I am using folderlistmodel.

Now my app with these files works charm:
Qt Code: 
  1. Rename Files
  2.    + platforms
  3.       - qwindows.dll
  4.    + Qt
  5.       + labs
  6.          + folderlistmodel
  7.             - plugins.qmltypes
  8.             - qmldir
  9.             - qmlfolderlistmodelplugin.dll
  10.    + QtQuick.2
  11.       - plugins.qmltypes
  12.       - qmldir
  13.       - qtquick2plugin.dll
  14.    - icon_rc_res.o
  15.    - icudt52.dll
  16.    - icuin51.dll
  17.    - icuuc51.dll
  18.    - libgcc_s_dw2-1.dll
  19.    - libstdc++-6.dll
  20.    - libwinpthread-1.dll
  21.    - main.o
  22.    - moc_qtquick2applicationviewer.o
  23.    - moc_renamer.o
  24.    - qrc_resource_file.o
  25.    - Qt5Core.dll
  26.    - Qt5Gui.dll
  27.    - Qt5Network.dll
  28.    - Qt5Qml.dll
  29.    - Qt5Quick.dll
  30.    - Qt5Script.dll
  31.    - Qt5V8.dll
  32.    - qtquick2applicationviewer.o
  33.    - Rename Files.exe
  34.    - rename.o
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On deployment "dig" method works!

Chris, Thanks a lot for your help!