diff --git a/main.cpp b/main.cpp
index 8abe704..24f6f4c 100644
--- a/main.cpp
+++ b/main.cpp
@@ -20,6 +20,7 @@
 #include <QProcess>
 #include <QCommandLineParser>
 #include <QStandardPaths>
+#include <QMainWindow>
 
 #include "update.h"
 #include "git/git_client.h"
@@ -27,6 +28,8 @@
 #include "apism/apism_client.h"
 #include "worker_thread.h"
 #include "worker.h"
+#include "mainwindow.h"
+#include "utils.h"
 
 #include <QThread>
 
@@ -80,10 +83,6 @@ int main(int argc, char *argv[]) {
     workingDirectoryOption.setDefaultValue(workingDirectoryDefault);
     parser.addOption(workingDirectoryOption);
 
-    QCommandLineOption maintenanceOption(QStringList() << "m" << "maintenance",
-        QCoreApplication::translate("main", "Maintenance mode for underlying script"));
-    parser.addOption(maintenanceOption);
-
     QCommandLineOption dryRunOption(QStringList() << "d" << "dry-run",
         QCoreApplication::translate("main", "Start ATBUpdateTool in dry-run-mode. No actual actions."));
     parser.addOption(dryRunOption);
@@ -101,7 +100,6 @@ int main(int argc, char *argv[]) {
     QString plugInDir = parser.value(pluginDirectoryOption);
     QString plugInName = parser.value(pluginNameOption);
     QString workingDir = parser.value(workingDirectoryOption);
-    bool maintenanceMode = parser.isSet(maintenanceOption);
     bool dryRun = parser.isSet(dryRunOption);
     QString const rtPath = QCoreApplication::applicationDirPath();
 
@@ -118,7 +116,6 @@ int main(int argc, char *argv[]) {
     qInfo() << "plugInDir ........." << plugInDir;
     qInfo() << "plugInName ........" << plugInName;
     qInfo() << "workingDir ........" << workingDir;
-    qInfo() << "maintenanceMode ..." << maintenanceMode;
     qInfo() << "dryRun ............" << dryRun;
 
     // before loading the library, delete all possible shared memory segments
@@ -131,11 +128,9 @@ int main(int argc, char *argv[]) {
     hwinf *hw = Update::loadDCPlugin(QDir(plugInDir), plugInName);
     // hw->dc_autoRequest(false);
 
-    QString const update_ctrl_file = "/opt/app/tools/atbupdate/update_log.csv";
-
-    int machineNr = Worker::read1stLineOfFile("/etc/machine_nr");
-    int customerNr = Worker::read1stLineOfFile("/etc/cust_nr");
-    int zoneNr = Worker::read1stLineOfFile("/etc/zone_nr");
+    int machineNr = Utils::read1stLineOfFile("/etc/machine_nr");
+    int customerNr = Utils::read1stLineOfFile("/etc/cust_nr");
+    int zoneNr = Utils::read1stLineOfFile("/etc/zone_nr");
     QString const branchName = (zoneNr != 0)
             ? QString("zg1/zone%1").arg(zoneNr) : "master";
 
@@ -148,8 +143,11 @@ int main(int argc, char *argv[]) {
                   zoneNr,
                   branchName,
                   workingDir,
-                  maintenanceMode,
                   dryRun);
 
+    MainWindow mw(&worker);
+    mw.setWindowFlags(Qt::Window | Qt::FramelessWindowHint);
+    mw.show();
+
     return a.exec();
 }