diff --git a/src/searchengine/engineselectdlg.cpp b/src/searchengine/engineselectdlg.cpp
index efcc3996c..972991c15 100644
--- a/src/searchengine/engineselectdlg.cpp
+++ b/src/searchengine/engineselectdlg.cpp
@@ -158,7 +158,7 @@ void engineSelectDlg::on_actionUninstall_triggered() {
     }else {
       // Proceed with uninstall
       // remove it from hard drive
-      QDir enginesFolder(fsutils::searchEngineLocation()+QDir::separator()+"engines");
+      QDir enginesFolder(fsutils::searchEngineLocation() + "/engines");
       QStringList filters;
       filters << id+".*";
       QStringList files = enginesFolder.entryList(filters, QDir::Files, QDir::Unsorted);
@@ -224,7 +224,7 @@ QTreeWidgetItem* engineSelectDlg::findItemWithID(QString id) {
 }
 
 bool engineSelectDlg::isUpdateNeeded(QString plugin_name, qreal new_version) const {
-  qreal old_version = SearchEngine::getPluginVersion(fsutils::searchEngineLocation()+QDir::separator()+"engines"+QDir::separator()+plugin_name+".py");
+  qreal old_version = SearchEngine::getPluginVersion(fsutils::searchEngineLocation() + "/engines/" + plugin_name + ".py");
   qDebug("IsUpdate needed? tobeinstalled: %.2f, alreadyinstalled: %.2f", new_version, old_version);
   return (new_version > old_version);
 }
@@ -239,7 +239,7 @@ void engineSelectDlg::installPlugin(QString path, QString plugin_name) {
     return;
   }
   // Process with install
-  QString dest_path = fsutils::searchEngineLocation()+QDir::separator()+"engines"+QDir::separator()+plugin_name+".py";
+  QString dest_path = fsutils::searchEngineLocation() + "/engines/" + plugin_name + ".py";
   bool update = false;
   if (QFile::exists(dest_path)) {
     // Backup in case install fails
@@ -304,12 +304,12 @@ void engineSelectDlg::addNewEngine(QString engine_name) {
     setRowColor(pluginsTree->indexOfTopLevelItem(item), "red");
   }
   // Handle icon
-  QString iconPath = fsutils::searchEngineLocation()+QDir::separator()+"engines"+QDir::separator()+engine->getName()+".png";
+  QString iconPath = fsutils::searchEngineLocation() + "/engines/" + engine->getName() + ".png";
   if (QFile::exists(iconPath)) {
     // Good, we already have the icon
     item->setData(ENGINE_NAME, Qt::DecorationRole, QVariant(QIcon(iconPath)));
   } else {
-    iconPath = fsutils::searchEngineLocation()+QDir::separator()+"engines"+QDir::separator()+engine->getName()+".ico";
+    iconPath = fsutils::searchEngineLocation() + "/engines/" + engine->getName() + ".ico";
     if (QFile::exists(iconPath)) { // ICO support
       item->setData(ENGINE_NAME, Qt::DecorationRole, QVariant(QIcon(iconPath)));
     } else {
@@ -355,7 +355,7 @@ void engineSelectDlg::askForLocalPlugin() {
   QString path;
   foreach (path, pathsList) {
     if (path.endsWith(".py", Qt::CaseInsensitive)) {
-      QString plugin_name = path.split(QDir::separator()).last();
+      QString plugin_name = path.split("/").last();
       plugin_name.replace(".py", "", Qt::CaseInsensitive);
       installPlugin(path, plugin_name);
     }
@@ -409,6 +409,7 @@ bool engineSelectDlg::parseVersionsFile(QString versions_file) {
 }
 
 void engineSelectDlg::processDownloadedFile(QString url, QString filePath) {
+  filePath = fsutils::fromNativePath(filePath);
   setCursor(QCursor(Qt::ArrowCursor));
   qDebug("engineSelectDlg received %s", qPrintable(url));
   if (url.endsWith("favicon.ico", Qt::CaseInsensitive)) {
@@ -423,9 +424,9 @@ void engineSelectDlg::processDownloadedFile(QString url, QString filePath) {
         QFile icon(filePath);
         icon.open(QIODevice::ReadOnly);
         if (ICOHandler::canRead(&icon))
-          iconPath = fsutils::searchEngineLocation()+QDir::separator()+"engines"+QDir::separator()+id+".ico";
+          iconPath = fsutils::searchEngineLocation() + "/engines/" + id + ".ico";
         else
-          iconPath = fsutils::searchEngineLocation()+QDir::separator()+"engines"+QDir::separator()+id+".png";
+          iconPath = fsutils::searchEngineLocation() + "/engines/" + id + ".png";
         QFile::copy(filePath, iconPath);
         item->setData(ENGINE_NAME, Qt::DecorationRole, QVariant(QIcon(iconPath)));
       }
diff --git a/src/searchengine/searchengine.cpp b/src/searchengine/searchengine.cpp
index b54895721..5eaab2169 100644
--- a/src/searchengine/searchengine.cpp
+++ b/src/searchengine/searchengine.cpp
@@ -126,7 +126,7 @@ bool SearchEngine::addPythonPathToEnv() {
     }
     path_envar = python_path+";"+path_envar;
     qDebug("New PATH envvar is: %s", qPrintable(path_envar));
-    qputenv("PATH", path_envar.toLocal8Bit());
+    qputenv("PATH", fsutils::toNativePath(path_envar).toLocal8Bit());
     return true;
   }
   return false;
@@ -148,7 +148,7 @@ void SearchEngine::pythonDownloadSuccess(QString url, QString file_path) {
   QProcess installer;
   qDebug("Launching Python installer in passive mode...");
 
-  installer.start("msiexec.exe /passive /i "+file_path.replace("/", "\\")+".msi");
+  installer.start("msiexec.exe /passive /i " + fsutils::toNativePath(file_path) + ".msi");
   // Wait for setup to complete
   installer.waitForFinished();
 
@@ -275,7 +275,7 @@ void SearchEngine::on_search_button_clicked() {
   // Getting checked search engines
   QStringList params;
   search_stopped = false;
-  params << fsutils::searchEngineLocation()+QDir::separator()+"nova2.py";
+  params << fsutils::toNativePath(fsutils::searchEngineLocation() + "/nova2.py");
   params << supported_engines->enginesEnabled().join(",");
   qDebug("Search with category: %s", qPrintable(selectedCategory()));
   params << selectedCategory();
@@ -343,7 +343,7 @@ void SearchEngine::downloadTorrent(QString engine_url, QString torrent_url) {
     connect(downloadProcess, SIGNAL(finished(int, QProcess::ExitStatus)), this, SLOT(downloadFinished(int,QProcess::ExitStatus)));
     downloaders << downloadProcess;
     QStringList params;
-    params << fsutils::searchEngineLocation()+QDir::separator()+"nova2dl.py";
+    params << fsutils::toNativePath(fsutils::searchEngineLocation() + "/nova2dl.py");
     params << engine_url;
     params << torrent_url;
     // Launch search
@@ -396,7 +396,7 @@ void SearchEngine::downloadFinished(int exitcode, QProcess::ExitStatus) {
 static void removePythonScriptIfExists(const QString& script_path)
 {
     fsutils::forceRemove(script_path);
-    fsutils::forceRemove(script_path+"c");
+    fsutils::forceRemove(script_path + "c");
 }
 
 // Update nova.py search plugin if necessary
@@ -411,7 +411,7 @@ void SearchEngine::updateNova() {
   if (!search_dir.exists("engines")) {
     search_dir.mkdir("engines");
   }
-  QFile package_file2(search_dir.absolutePath().replace("\\", "/")+"/engines/__init__.py");
+  QFile package_file2(search_dir.absolutePath() + "/engines/__init__.py");
   package_file2.open(QIODevice::WriteOnly | QIODevice::Text);
   package_file2.close();
   // Copy search plugin files (if necessary)
diff --git a/src/searchengine/supportedengines.h b/src/searchengine/supportedengines.h
index 5d012df58..b33293061 100644
--- a/src/searchengine/supportedengines.h
+++ b/src/searchengine/supportedengines.h
@@ -144,7 +144,7 @@ public slots:
     QProcess nova;
     nova.setEnvironment(QProcess::systemEnvironment());
     QStringList params;
-    params << fsutils::searchEngineLocation()+QDir::separator()+"nova2.py";
+    params << fsutils::toNativePath(fsutils::searchEngineLocation()+"/nova2.py");
     params << "--capabilities";
     nova.start("python", params, QIODevice::ReadOnly);
     nova.waitForStarted();