diff --git a/.ci/luaengine.nsi b/.ci/luaengine.nsi
index 0aaaa4a..5509578 100644
--- a/.ci/luaengine.nsi
+++ b/.ci/luaengine.nsi
@@ -7,7 +7,7 @@
 !define COPYRIGHT "Copyright © 2018-2019 Syping"
 !define DESCRIPTION "LuaEngine Runtime and Compiler"
 !define INSTALLER_NAME "luaengine_setup.exe"
-!define MAIN_APP_RUNTIME "LuaEngine.exe"
+!define MAIN_APP_RUNTIME "luaengine.exe"
 !define MAIN_APP_COMPILER "luaenginec.exe"
 !define INSTALL_TYPE "SetShellVarContext all"
 !define REG_ROOT "HKLM"
@@ -102,7 +102,7 @@ ${INSTALL_TYPE}
 SetOverwrite ifnewer
 SetOutPath "$INSTDIR"
 File "LuaEngine.dll"
-File "LuaEngine.exe"
+File "luaengine.exe"
 File "luaenginec.exe"
 File "LuaEngineGui.dll"
 File "LuaEngineIO.dll"
@@ -114,8 +114,6 @@ File "/opt/windev/qt64d-latest/bin/Qt5Core.dll"
 File "/opt/windev/qt64d-latest/bin/Qt5Gui.dll"
 File "/opt/windev/qt64d-latest/bin/Qt5Svg.dll"
 File "/opt/windev/qt64d-latest/bin/Qt5Widgets.dll"
-SetOutPath "$INSTDIR\sstubs"
-File "windows.le"
 SetOutPath "$INSTDIR\imageformats"
 File "/opt/windev/qt64d-latest/plugins/imageformats/qgif.dll"
 File "/opt/windev/qt64d-latest/plugins/imageformats/qicns.dll"
@@ -128,6 +126,10 @@ File "/opt/windev/qt64d-latest/plugins/imageformats/qwbmp.dll"
 File "/opt/windev/qt64d-latest/plugins/imageformats/qwebp.dll"
 SetOutPath "$INSTDIR\platforms"
 File "/opt/windev/qt64d-latest/plugins/platforms/qwindows.dll"
+SetOutPath "$INSTDIR\scripts"
+File "luaenginert.lea"
+SetOutPath "$INSTDIR\sstubs"
+File "windows.le"
 SetOutPath "$INSTDIR\styles"
 File "/opt/windev/qt64d-latest/plugins/styles/qcleanlooksstyle.dll"
 File "/opt/windev/qt64d-latest/plugins/styles/qplastiquestyle.dll"
@@ -143,7 +145,7 @@ WriteUninstaller "$INSTDIR\uninstall.exe"
 !ifdef REG_START_MENU
 !insertmacro MUI_STARTMENU_WRITE_BEGIN Application
 CreateDirectory "$SMPROGRAMS\$SM_Folder"
-CreateShortCut "$SMPROGRAMS\$SM_Folder\${APP_NAME}.lnk" "$INSTDIR\${MAIN_APP_RUNTIME}"
+CreateShortCut "$SMPROGRAMS\$SM_Folder\${APP_NAME}.lnk" "$INSTDIR\${MAIN_APP_RUNTIME} $INSTDIR\scripts\luaenginert.lea"
 CreateShortCut "$SMPROGRAMS\$SM_Folder\${APP_NAME} Compiler.lnk" "$INSTDIR\${MAIN_APP_COMPILER}"
 CreateShortCut "$SMPROGRAMS\$SM_Folder\Uninstall ${APP_NAME}.lnk" "$INSTDIR\uninstall.exe"
 
@@ -156,7 +158,8 @@ CreateShortCut "$SMPROGRAMS\$SM_Folder\${APP_NAME} Website.lnk" "$INSTDIR\${APP_
 
 !ifndef REG_START_MENU
 CreateDirectory "$SMPROGRAMS\LuaEngine"
-CreateShortCut "$SMPROGRAMS\LuaEngine\${APP_NAME}.lnk" "$INSTDIR\${MAIN_APP_RUNTIME}"
+CreateShortCut "$SMPROGRAMS\LuaEngine\${APP_NAME}.lnk" "$INSTDIR\${MAIN_APP_RUNTIME} $INSTDIR\scripts\luaenginert.lea"
+CreateShortCut "$SMPROGRAMS\$SM_Folder\${APP_NAME} Compiler.lnk" "$INSTDIR\${MAIN_APP_COMPILER}"
 CreateShortCut "$SMPROGRAMS\LuaEngine\Uninstall ${APP_NAME}.lnk" "$INSTDIR\uninstall.exe"
 
 !ifdef WEB_SITE
@@ -184,7 +187,7 @@ SectionEnd
 Section Uninstall
 ${INSTALL_TYPE}
 Delete "$INSTDIR\LuaEngine.dll"
-Delete "$INSTDIR\LuaEngine.exe"
+Delete "$INSTDIR\luaengine.exe"
 Delete "$INSTDIR\luaenginec.exe"
 Delete "$INSTDIR\LuaEngineGui.dll"
 Delete "$INSTDIR\LuaEngineIO.dll"
@@ -196,7 +199,6 @@ Delete "$INSTDIR\Qt5Core.dll"
 Delete "$INSTDIR\Qt5Gui.dll"
 Delete "$INSTDIR\Qt5Svg.dll"
 Delete "$INSTDIR\Qt5Widgets.dll"
-Delete "$INSTDIR\sstubs\windows.le"
 Delete "$INSTDIR\imageformats\qgif.dll"
 Delete "$INSTDIR\imageformats\qicns.dll"
 Delete "$INSTDIR\imageformats\qico.dll"
@@ -207,6 +209,8 @@ Delete "$INSTDIR\imageformats\qtiff.dll"
 Delete "$INSTDIR\imageformats\qwbmp.dll"
 Delete "$INSTDIR\imageformats\qwebp.dll"
 Delete "$INSTDIR\platforms\qwindows.dll"
+Delete "$INSTDIR\scripts\luaenginert.lea"
+Delete "$INSTDIR\sstubs\windows.le"
 Delete "$INSTDIR\styles\qcleanlooksstyle.dll"
 Delete "$INSTDIR\styles\qplastiquestyle.dll"
 Delete "$INSTDIR\styles\qwindowsvistastyle.dll"
@@ -245,7 +249,7 @@ RmDir "$SMPROGRAMS\LuaEngine"
 
 DeleteRegKey ${REG_ROOT} "${REG_APP_RUNTIME}"
 DeleteRegKey ${REG_ROOT} "${REG_APP_COMPILER}"
-DeleteRegKey ${REG_ROOT} "${REG_ENVIRONMENT}\${REG_ENV_RUNTIME}"
+DeleteRegValue ${REG_ROOT} "${REG_ENV_RUNTIME}" "${REG_ENVIRONMENT}"
 DeleteRegKey ${REG_ROOT} "${UNINSTALL_PATH}"
 SectionEnd
 
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2f1ce7e..36a19bb 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -16,13 +16,13 @@ LuaEngine Windows:
     - cp -Rf src/luaenginegui/release/LuaEngineGui.dll ${CI_PROJECT_DIR}/
     - cp -Rf src/luaengineio/release/LuaEngineIO.dll ${CI_PROJECT_DIR}/
     - cp -Rf src/luaengineos/release/LuaEngineOS.dll ${CI_PROJECT_DIR}/
-    - cp -Rf src/luaengine/release/LuaEngine.exe ${CI_PROJECT_DIR}/
+    - cp -Rf src/luaengine/release/luaengine.exe ${CI_PROJECT_DIR}/
     - cp -Rf src/luaenginec/release/luaenginec.exe ${CI_PROJECT_DIR}/
     - cd ${CI_PROJECT_DIR}
   artifacts:
     paths:
       - "LuaEngine.dll"
-      - "LuaEngine.exe"
+      - "luaengine.exe"
       - "luaenginec.exe"
       - "LuaEngineGui.dll"
       - "LuaEngineIO.dll"
diff --git a/scripts/luaenginert.lea b/scripts/luaenginert.lea
new file mode 100644
index 0000000..2f152aa
--- /dev/null
+++ b/scripts/luaenginert.lea
@@ -0,0 +1,60 @@
+#!/usr/bin/env luaengine
+--[[
+******************************************************************************
+* luaengine LuaEngine Runtime
+* Copyright (C) 2019 Syping
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*     http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+******************************************************************************
+--]]
+
+local mainWindow
+local scriptLineEdit
+
+function main()
+    mainWindow = createMainWindow("LuaEngine Runtime")
+    local mainLayout = createLayout(VerticalLayout, mainWindow)
+
+    createLabel("<strong>LuaEngine Runtime</strong>", mainLayout)
+
+    local scriptLayout = createLayout(HorizontalLayout, mainLayout)
+    createLabel("Script:", scriptLayout)
+    scriptLineEdit = createLineEdit("", scriptLayout)
+    setWidgetReadOnly(scriptLineEdit)
+    local scriptToolButton = createToolButton("...", scriptLayout)
+    connect(scriptToolButton, "clicked()", "scriptButtonPressed")
+
+    createSpacerItem(SizePolicyMinimum, SizePolicyExpanding, mainLayout)
+
+    local buttonLayout = createLayout(HorizontalLayout, mainLayout)
+    createSpacerItem(SizePolicyExpanding, SizePolicyMinimum, buttonLayout)
+    local runButton = createPushButton("&Run", buttonLayout)
+    connect(runButton, "clicked()", "runScript")
+
+    setWidgetSize(mainWindow, 300, 0) 
+    setWidgetFixed(mainWindow, true)
+    showWidget(mainWindow, ShowDefault)
+
+    return GuiExecuted
+end
+
+function scriptButtonPressed()
+    local filePath = showFileDialog(OpenFileDialog, "Select LuaEngine script...", "LuaEngine scripts (*.lua *.lea)", mainWindow)
+    if (filePath ~= nil) then
+        setWidgetText(scriptLineEdit, filePath)
+    end
+end
+
+function runScript()
+    executeProcess(_LuaEngineRT, getWidgetText(scriptLineEdit), true)
+end
diff --git a/src/luaengine/luaengine.pro b/src/luaengine/luaengine.pro
index f2b51ab..a309a22 100644
--- a/src/luaengine/luaengine.pro
+++ b/src/luaengine/luaengine.pro
@@ -17,7 +17,6 @@
 
 QT += widgets
 TARGET = luaengine
-win32: TARGET = LuaEngine
 CONFIG += c++11
 VERSION = 0.1
 
diff --git a/src/luaengine/main.cpp b/src/luaengine/main.cpp
index bf29c8c..2a54682 100644
--- a/src/luaengine/main.cpp
+++ b/src/luaengine/main.cpp
@@ -43,6 +43,7 @@ int main(int argc, char *argv[])
     }
 
     if (arguments.length() >= 2) {
+        QVariant rtPath = arguments.first();
         arguments.removeFirst();
         QFile luaScript(arguments.first().toString());
         if (!luaScript.open(QIODevice::ReadOnly)) {
@@ -60,6 +61,7 @@ int main(int argc, char *argv[])
         LuaEngineGui luaEngineGui;
         LuaEngineIO::pushClass(&luaEngineGui);
         LuaEngineOS::pushClass(&luaEngineGui);
+        luaEngineGui.pushVariant("_LuaEngineRT", rtPath);
         luaEngineGui.executeLuaScript(luaScript.readAll());
 
         if (luaEngineGui.executeLuaFunction("main", arguments, true)) {
diff --git a/src/luaengineapp/main.cpp b/src/luaengineapp/main.cpp
index 2d14219..33c4819 100644
--- a/src/luaengineapp/main.cpp
+++ b/src/luaengineapp/main.cpp
@@ -54,7 +54,7 @@ int main(int argc, char *argv[])
 }
 #else
     {
-        QFile executable(a.arguments().at(0));
+        QFile executable(a.arguments().first());
         if (executable.open(QIODevice::ReadOnly)) {
             qint64 executableSize = executable.size();
             executable.seek(executableSize - 6);
diff --git a/src/luaengineio/luaengine/LuaEngineIO.cpp b/src/luaengineio/luaengine/LuaEngineIO.cpp
index 51957f9..74ccf88 100644
--- a/src/luaengineio/luaengine/LuaEngineIO.cpp
+++ b/src/luaengineio/luaengine/LuaEngineIO.cpp
@@ -18,6 +18,7 @@
 #include "LuaEngineIO.h"
 #include <QDirIterator>
 #include <QTextStream>
+#include <QFileInfo>
 #include <QString>
 #include <QObject>
 #include <QFile>
@@ -38,6 +39,7 @@ void LuaEngineIO::pushClass(lua_State *L_p)
 {
     // Directory
     pushFunction(L_p, "directoryListFiles", directoryListFiles);
+    pushFunction(L_p, "getDirectoryPath", getDirectoryPath);
 
     // File
     pushFunction(L_p, "linkFile", linkFile);
@@ -102,6 +104,18 @@ int LuaEngineIO::linkFile(lua_State *L_p)
     return 1;
 }
 
+int LuaEngineIO::getDirectoryPath(lua_State *L_p)
+{
+    if (getArgumentCount(L_p) >= 1) {
+        QFileInfo fileInfo(getVariant(L_p, 1).toString());
+        if (fileInfo.exists()) {
+            pushVariant(L_p, fileInfo.absoluteDir().absolutePath());
+            return 1;
+        }
+    }
+    return 0;
+}
+
 QString LuaEngineIO::nameForPointer(void *pointer)
 {
     QString nameStorage;
diff --git a/src/luaengineio/luaengine/LuaEngineIO.h b/src/luaengineio/luaengine/LuaEngineIO.h
index 6b375ed..fc96020 100644
--- a/src/luaengineio/luaengine/LuaEngineIO.h
+++ b/src/luaengineio/luaengine/LuaEngineIO.h
@@ -32,6 +32,7 @@ public:
     static void pushClass(LuaEngine *luaEngine);
     static int directoryListFiles(lua_State *L_p);
     static int linkFile(lua_State *L_p);
+    static int getDirectoryPath(lua_State *L_p);
 
 private:
     lua_State *L;