--- a/ui/mainwindow.cpp	Thu May 22 15:29:59 2014 +0200
+++ b/ui/mainwindow.cpp	Thu May 22 15:18:06 2014 +0000
@@ -14,6 +14,7 @@
 #include <QSystemTrayIcon>
 #include <QAction>
 #include <QDialog>
+#include <QDir>
 #include <QMenu>
 #include <QApplication>
 #include <QFile>
@@ -149,7 +150,6 @@
             mSettings.remove("List/installedDate");
         }
     } else {
-        // Make sure the available notation is also removed
         mSettings.remove("List/installed");
         mSettings.remove("List/installedDate");
     }
@@ -201,10 +201,15 @@
         setState(TransferError);
         return;
     }
+    QString filePath = QDir::toNativeSeparators(instProcInfo.absoluteFilePath());
 #ifdef WIN32
     SHELLEXECUTEINFOW shExecInfo;
-    shExecInfo.lpFile = reinterpret_cast<LPCWSTR> (
-            QDir::toNativeSeparators(instProcInfo.absoluteFilePath()).utf16());
+    memset (&shExecInfo, 0, sizeof(SHELLEXECUTEINFOW));
+    shExecInfo.cbSize = sizeof(SHELLEXECUTEINFOW);
+
+    shExecInfo.lpFile = reinterpret_cast<LPCWSTR> (filePath.utf16());
+
+    shExecInfo.fMask = SEE_MASK_NOASYNC;
 
     if (!is_admin()) {
         shExecInfo.lpVerb = L"open";
@@ -212,8 +217,7 @@
         shExecInfo.lpVerb = L"runas";
     }
 
-    qDebug() << "Admin? " << is_admin();
-    qDebug() << "Starting processs: " << QDir::toNativeSeparators(instProcInfo.absoluteFilePath());
+    qDebug() << "Starting process: " << filePath;
 
     if (!ShellExecuteExW(&shExecInfo)) {
         /* Execution failed, maybe the user aborted the UAC check? */
@@ -224,15 +228,10 @@
         setState(NewSoftwareAvailable);
         return;
     }
-
 #else /* WIN32 */
-    QProcess installerProcess;
-    installerProcess.setProgram(fileName);
+    qDebug() << "Starting process " << filePath;
 
-    qDebug() << "Starting process " << fileName;
-
-    if (!installerProcess.waitForStarted() ||
-        installerProcess.state() == QProcess::NotRunning) {
+    if (!QProcess::startDetached(filePath)) {
         qDebug() << "Failed to start process.";
         return;
     }

--- a/ui/mainwindow.h	Thu May 22 15:29:59 2014 +0200
+++ b/ui/mainwindow.h	Thu May 22 15:18:06 2014 +0000
@@ -125,7 +125,7 @@
      *
      * Perform a clean exit (saving state etc.) and close
      * the application */
-    void closeApp();
+    virtual void closeApp();
 
     /* @brief Execute the file fileName to install the softwareupdate.
      *

--- a/ui/tests/CMakeLists.txt	Thu May 22 15:29:59 2014 +0200
+++ b/ui/tests/CMakeLists.txt	Thu May 22 15:18:06 2014 +0000
@@ -60,6 +60,9 @@
 add_custom_test(createcertlisttest.cpp "")
 add_custom_test(mainwindowtest.cpp "")
 
+# Using fakeinstaller here would cause windows UAC heuristics to trigger
+add_executable(fakeinst fakeinstaller.c)
+
 if (WIN32)
    add_custom_test(windowsstoretest.cpp "${CMAKE_SOURCE_DIR}/cinst/windowsstore.c")
 endif (WIN32)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ui/tests/fakeinstaller.c	Thu May 22 15:18:06 2014 +0000
@@ -0,0 +1,26 @@
+/* Copyright (C) 2014 by Bundesamt für Sicherheit in der Informationstechnik
+* Software engineering by Intevation GmbH
+
+* This file is Free Software under the GNU GPL (v>=2)
+* and comes with ABSOLUTELY NO WARRANTY!
+* See LICENSE.txt for details. */
+
+/**@file dummy program to test installer execution */
+
+#include <stdio.h>
+#ifdef WIN32
+#include <windows.h>
+#endif
+
+int main() {
+
+    int i = 0;
+#ifdef WIN32
+    OutputDebugStringA("Fakeinstaller started.");
+#else
+    printf("Fakeinstaller started\n");
+#endif
+    for (; i < 0x0fffffff; i++);
+
+    return 0;
+}

--- a/ui/tests/mainwindowtest.cpp	Thu May 22 15:29:59 2014 +0200
+++ b/ui/tests/mainwindowtest.cpp	Thu May 22 15:18:06 2014 +0000
@@ -8,6 +8,8 @@
 
 #include "mainwindowtest.h"
 
+#include <QSignalSpy>
+
 #ifdef Q_OS_WIN
  Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)
 #else
@@ -26,7 +28,13 @@
 }
 
 void MainWindowTest::testValidUpdate() {
-    // TODO
+    QSignalSpy closed(this, SIGNAL(closeCalled()));
+#ifdef Q_OS_WIN
+    installNewSW(QString::fromLatin1("c:/fakeinst.exe"), QDateTime::currentDateTime());
+#else
+    installNewSW(QString::fromLatin1("fakeinst"), QDateTime::currentDateTime());
+#endif
+    QVERIFY(closed.count() == 1);
 }
 
 QTEST_MAIN(MainWindowTest);