diff --git a/LogarithmPlotter/logarithmplotter.py b/LogarithmPlotter/logarithmplotter.py
index b71d18c..1e534f2 100644
--- a/LogarithmPlotter/logarithmplotter.py
+++ b/LogarithmPlotter/logarithmplotter.py
@@ -181,14 +181,15 @@ def run():
     engine.addImportPath(path.realpath(path.join(getcwd(), "qml")))
     engine.load(path.realpath(path.join(getcwd(), "qml", "eu", "ad5001", "LogarithmPlotter", "LogarithmPlotter.qml")))
 
+    if not engine.rootObjects():
+        print("No root object", path.realpath(path.join(getcwd(), "qml")))
+        print(path.realpath(path.join(getcwd(), "qml", "eu", "ad5001", "LogarithmPlotter", "LogarithmPlotter.qml")))
+        exit(-1)
+
     chdir(pwd)
     if len(argv) > 0 and path.exists(argv[-1]) and argv[-1].split('.')[-1] in ['lpf']:
         engine.rootObjects()[0].loadDiagram(argv[-1])
     chdir(path.dirname(path.realpath(__file__)))
-
-    if not engine.rootObjects():
-        print("No root object")
-        exit(-1)
     
     if platform == "darwin":
         macOSFileOpenHandler.init_graphics(engine.rootObjects()[0])
diff --git a/package-windows.bat b/package-windows.bat
index 2414542..777f2f9 100644
--- a/package-windows.bat
+++ b/package-windows.bat
@@ -4,3 +4,4 @@ XCOPY LICENSE.md dist\logarithmplotter /C /D /Y
 rem Creating installer
 cd dist\logarithmplotter
 "C:\Program Files (x86)\NSIS\makensis" installer.nsi
+cd ..\..
diff --git a/win/inst_banner.bmp b/win/inst_banner.bmp
index 72b9178..6eb8b65 100644
Binary files a/win/inst_banner.bmp and b/win/inst_banner.bmp differ
diff --git a/win/installer.nsi b/win/installer.nsi
index 1ac3c7c..1ceaab2 100644
--- a/win/installer.nsi
+++ b/win/installer.nsi
@@ -56,6 +56,7 @@ VIAddVersionKey "FileVersion"  "${APP_VERSION}"
 
 ;Icons
 Icon "logarithmplotter.ico"
+!define MUI_ICON "logarithmplotter.ico"
 ;!define MUI_HEADERIMAGE
 ;!define MUI_HEADERIMAGE_BITMAP "logarithmplotter.bmp"
 !define MUI_WELCOMEFINISHPAGE_BITMAP "inst_banner.bmp"