diff --git a/CMakeLists.txt b/CMakeLists.txt
index f1ca859c9..35d99dfd6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -55,6 +55,9 @@ SET( CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}" )
 SET( CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}" )
 SET( CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}" )
 
+# make predefined install dirs available everywhere
+INCLUDE(GNUInstallDirs)
+
 # installer creation
 INCLUDE( TomahawkCPack.cmake )
 
diff --git a/src/CMakeLists.linux.txt b/src/CMakeLists.linux.cmake
similarity index 60%
rename from src/CMakeLists.linux.txt
rename to src/CMakeLists.linux.cmake
index ae108e4d5..e3e207fa1 100644
--- a/src/CMakeLists.linux.txt
+++ b/src/CMakeLists.linux.cmake
@@ -2,9 +2,9 @@ FILE( GLOB _icons "${CMAKE_SOURCE_DIR}/data/icons/tomahawk-icon-*.png" )
 FOREACH( _file ${_icons} )
  STRING( REPLACE "${CMAKE_SOURCE_DIR}/data/icons/tomahawk-icon-" "" _res ${_file} )
  STRING( REPLACE ".png" "" _res ${_res} )
- INSTALL( FILES ${_file} RENAME tomahawk.png DESTINATION share/icons/hicolor/${_res}/apps )
+ INSTALL( FILES ${_file} RENAME tomahawk.png DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/${_res}/apps )
 ENDFOREACH( _file )
 
-INSTALL( FILES ${CMAKE_SOURCE_DIR}/data/icons/tomahawk-icon.svg RENAME tomahawk.svg  DESTINATION share/icons/hicolor/scalable/apps )
+INSTALL( FILES ${CMAKE_SOURCE_DIR}/data/icons/tomahawk-icon.svg RENAME tomahawk.svg  DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/scalable/apps )
 
-INSTALL( FILES ${CMAKE_SOURCE_DIR}/admin/unix/tomahawk.desktop DESTINATION share/applications )
+INSTALL( FILES ${CMAKE_SOURCE_DIR}/admin/unix/tomahawk.desktop DESTINATION ${CMAKE_INSTALL_DATADIR}/applications )
diff --git a/src/CMakeLists.osx.txt b/src/CMakeLists.osx.cmake
similarity index 100%
rename from src/CMakeLists.osx.txt
rename to src/CMakeLists.osx.cmake
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index d11a9c537..ee9d3fbe6 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -178,10 +178,10 @@ INCLUDE_DIRECTORIES(
 SET( OS_SPECIFIC_LINK_LIBRARIES "" )
 
 IF( WIN32 )
-  INCLUDE( "CMakeLists.win32.txt" )
+  INCLUDE( "CMakeLists.win32.cmake" )
 ENDIF( WIN32 )
 IF( UNIX )
-  INCLUDE( "CMakeLists.unix.txt" )
+  INCLUDE( "CMakeLists.unix.cmake" )
 ENDIF( UNIX )
 
 IF( APPLE )
@@ -206,6 +206,7 @@ IF(QCA2_FOUND)
     INCLUDE_DIRECTORIES( ${QCA2_INCLUDE_DIR} )
 ENDIF(QCA2_FOUND)
 
+INCLUDE(GNUInstallDirs)
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/config.h.in
                ${CMAKE_CURRENT_BINARY_DIR}/config.h)
 
@@ -271,12 +272,12 @@ IF( APPLE )
   ENDIF(HAVE_SPARKLE)
 ENDIF( APPLE )
 
-INSTALL( TARGETS tomahawk BUNDLE DESTINATION . RUNTIME DESTINATION bin )
+INSTALL( TARGETS tomahawk BUNDLE DESTINATION . RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} )
 
 IF( UNIX AND NOT APPLE AND KDE4_INSTALLED AND LEGACY_KDE_INTEGRATION ) #install protocol file
   FILE( READ ${CMAKE_SOURCE_DIR}/admin/unix/tomahawk.protocol protocol )
   STRING( REPLACE "/path/to/binary" # match this
-              "${CMAKE_INSTALL_PREFIX}/bin/tomahawk" # this is linux (kde) so pretty safe I think
+              "${CMAKE_INSTALL_FULL_BINDIR}/tomahawk" # this is linux (kde) so pretty safe I think
               edited_protocol # save in this variable
               "${protocol}" # from the contents of this var
           )
@@ -284,7 +285,7 @@ IF( UNIX AND NOT APPLE AND KDE4_INSTALLED AND LEGACY_KDE_INTEGRATION ) #install
   IF( ${SERVICES_INSTALL_DIR} )
     SET( PROTOCOL_INSTALL_DIR ${SERVICES_INSTALL_DIR} )
   ELSE()
-    SET( PROTOCOL_INSTALL_DIR "${CMAKE_INSTALL_PREFIX}/share/kde4/services" )
+    SET( PROTOCOL_INSTALL_DIR "${CMAKE_INSTALL_FULL_DATADIR}/kde4/services" )
   ENDIF()
   INSTALL( FILES ${CMAKE_BINARY_DIR}/tomahawk.protocol DESTINATION ${PROTOCOL_INSTALL_DIR} )
 ENDIF()
diff --git a/src/CMakeLists.unix.txt b/src/CMakeLists.unix.cmake
similarity index 76%
rename from src/CMakeLists.unix.txt
rename to src/CMakeLists.unix.cmake
index 975ddf20f..49caf297b 100644
--- a/src/CMakeLists.unix.txt
+++ b/src/CMakeLists.unix.cmake
@@ -7,9 +7,9 @@ ADD_DEFINITIONS( -fPIC )
 SET( QXTWEB_LIBRARIES qxtweb-standalone )
 
 IF( APPLE )
-    INCLUDE( "CMakeLists.osx.txt" )
+    INCLUDE( "CMakeLists.osx.cmake" )
 ENDIF( APPLE )
 
 IF( UNIX AND NOT APPLE )
-    INCLUDE( "CMakeLists.linux.txt" )
+    INCLUDE( "CMakeLists.linux.cmake" )
 ENDIF( UNIX AND NOT APPLE )
diff --git a/src/CMakeLists.win32.txt b/src/CMakeLists.win32.cmake
similarity index 100%
rename from src/CMakeLists.win32.txt
rename to src/CMakeLists.win32.cmake
diff --git a/src/breakpad/BreakPad.cpp b/src/breakpad/BreakPad.cpp
index a76b84124..0215d7796 100644
--- a/src/breakpad/BreakPad.cpp
+++ b/src/breakpad/BreakPad.cpp
@@ -82,14 +82,14 @@ BreakPad::BreakPad( const QString& path, bool active )
 
     QString reporter;
     QString localReporter = QString( "%1/%2" ).arg( qApp->applicationDirPath() ).arg( CRASH_REPORTER_BINARY );
-    QString globalReporter = QString( "%1/%2" ).arg( CMAKE_INSTALL_PREFIX "/" CMAKE_INSTALL_LIBEXECDIR ).arg( CRASH_REPORTER_BINARY );
+    QString globalReporter = QString( "%1/%2" ).arg( CMAKE_INSTALL_FULL_LIBEXECDIR ).arg( CRASH_REPORTER_BINARY );
 
     if ( QFileInfo( localReporter ).exists() )
         reporter = localReporter;
     else if ( QFileInfo( globalReporter ).exists() )
         reporter = globalReporter;
     else
-        tLog() << "Could not find \"" CRASH_REPORTER_BINARY "\" in \"" CMAKE_INSTALL_PREFIX "/" CMAKE_INSTALL_LIBEXECDIR "\" or application path";
+        tLog() << "Could not find \"" CRASH_REPORTER_BINARY "\" in \"" CMAKE_INSTALL_FULL_LIBEXECDIR "\" or application path";
 
     char* creporter;
     std::string sreporter = reporter.toStdString();
diff --git a/src/breakpad/CrashReporter/CMakeLists.txt b/src/breakpad/CrashReporter/CMakeLists.txt
index 5040838ef..d1944bfcc 100644
--- a/src/breakpad/CrashReporter/CMakeLists.txt
+++ b/src/breakpad/CrashReporter/CMakeLists.txt
@@ -22,4 +22,4 @@ ADD_EXECUTABLE( tomahawk_crash_reporter WIN32 ${crashreporter_SOURCES} ${crashre
 TARGET_LINK_LIBRARIES( tomahawk_crash_reporter ${QT_LIBRARIES} tomahawklib )
 
 INCLUDE(GNUInstallDirs)
-install(TARGETS tomahawk_crash_reporter RUNTIME DESTINATION ${CMAKE_INSTALL_LIBEXECDIR})
+install(TARGETS tomahawk_crash_reporter RUNTIME DESTINATION ${CMAKE_INSTALL_FULL_LIBEXECDIR})
diff --git a/src/config.h.in b/src/config.h.in
index ce0963ecd..42e6a346b 100644
--- a/src/config.h.in
+++ b/src/config.h.in
@@ -9,7 +9,7 @@
 #cmakedefine DEBUG_BUILD
 
 #define CMAKE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}"
-#define CMAKE_INSTALL_LIBEXECDIR "${CMAKE_INSTALL_LIBEXECDIR}"
+#define CMAKE_INSTALL_FULL_LIBEXECDIR "${CMAKE_INSTALL_FULL_LIBEXECDIR}"
 #define CMAKE_SYSTEM "${CMAKE_SYSTEM}"
 
 #cmakedefine LION
diff --git a/src/libtomahawk/CMakeLists.txt b/src/libtomahawk/CMakeLists.txt
index 8c8eef10e..5ce805f2e 100644
--- a/src/libtomahawk/CMakeLists.txt
+++ b/src/libtomahawk/CMakeLists.txt
@@ -673,7 +673,7 @@ TARGET_LINK_LIBRARIES( tomahawklib
 )
 
 INSTALL( TARGETS tomahawklib
-    RUNTIME DESTINATION bin
-    LIBRARY DESTINATION lib${LIB_SUFFIX}
-    ARCHIVE DESTINATION lib${LIB_SUFFIX}
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
 )
diff --git a/src/libtomahawk/resolvers/scriptresolver.cpp b/src/libtomahawk/resolvers/scriptresolver.cpp
index 56d027f65..b452c7b56 100644
--- a/src/libtomahawk/resolvers/scriptresolver.cpp
+++ b/src/libtomahawk/resolvers/scriptresolver.cpp
@@ -45,24 +45,13 @@ ScriptResolver::ScriptResolver( const QString& exe )
     connect( &m_proc, SIGNAL( readyReadStandardOutput() ), SLOT( readStdout() ) );
     connect( &m_proc, SIGNAL( finished( int, QProcess::ExitStatus ) ), SLOT( cmdExited( int, QProcess::ExitStatus ) ) );
 
-    QString runPath = filePath();
-#ifdef WIN32
-    // have to enclose in quotes if path contains spaces on windows...
-    runPath = QString( "\"%1\"" ).arg( filePath() );
-#endif
-
-    if ( !QFile::exists( filePath() ) )
-        m_error = Tomahawk::ExternalResolver::FileNotFound;
-    else
-        m_proc.start( runPath );
+    startProcess();
 
     if ( !TomahawkUtils::nam() )
         return;
 
     // set the name to the binary, if we launch properly we'll get the name the resolver reports
     m_name = QFileInfo( filePath() ).baseName();
-
-    sendConfig();
 }
 
 
@@ -141,15 +130,7 @@ ScriptResolver::sendConfig()
 void
 ScriptResolver::reload()
 {
-    if ( !QFile::exists( filePath() ) )
-        m_error = Tomahawk::ExternalResolver::FileNotFound;
-    else
-    {
-        m_error = Tomahawk::ExternalResolver::NoError;
-        m_proc.start( filePath() );
-
-        sendConfig();
-    }
+    startProcess();
 }
 
 
@@ -309,7 +290,7 @@ ScriptResolver::cmdExited( int code, QProcess::ExitStatus status )
     {
         m_num_restarts++;
         tLog() << "*** Restart num" << m_num_restarts;
-        m_proc.start( filePath() );
+        startProcess();
         sendConfig();
     }
     else
@@ -381,6 +362,41 @@ ScriptResolver::setupConfWidget( const QVariantMap& m )
 }
 
 
+void ScriptResolver::startProcess()
+{
+    if ( !QFile::exists( filePath() ) )
+        m_error = Tomahawk::ExternalResolver::FileNotFound;
+    else
+    {
+        m_error = Tomahawk::ExternalResolver::NoError;
+    }
+
+    QFileInfo fi( filePath() );
+
+    QString interpreter;
+    QString runPath = filePath();
+
+#ifdef Q_OS_WIN
+    if(fi.completeSuffix() == "py")
+    {
+        interpreter = "python.exe";
+    }
+    else
+    {
+        // have to enclose in quotes if path contains spaces on windows...
+        runPath = QString( "\"%1\"" ).arg( filePath() );
+    }
+#endif // Q_OS_WIN
+
+    if( interpreter.isEmpty() )
+        m_proc.start( runPath );
+    else
+        m_proc.start( interpreter, QStringList() << filePath() );
+
+    sendConfig();
+}
+
+
 void
 ScriptResolver::saveConfig()
 {
diff --git a/src/libtomahawk/resolvers/scriptresolver.h b/src/libtomahawk/resolvers/scriptresolver.h
index c7cd9a9e4..f8e94b0ff 100644
--- a/src/libtomahawk/resolvers/scriptresolver.h
+++ b/src/libtomahawk/resolvers/scriptresolver.h
@@ -75,6 +75,8 @@ private:
     void doSetup( const QVariantMap& m );
     void setupConfWidget( const QVariantMap& m );
 
+    void startProcess();
+
     QProcess m_proc;
     QString m_name;
     unsigned int m_weight, m_preference, m_timeout, m_num_restarts;
diff --git a/src/resolversmodel.cpp b/src/resolversmodel.cpp
index b27e00791..c38b02b44 100644
--- a/src/resolversmodel.cpp
+++ b/src/resolversmodel.cpp
@@ -208,7 +208,7 @@ ResolversModel::addInstalledResolvers()
 
     QDir appDir( qApp->applicationDirPath() );
     QDir libDir( CMAKE_INSTALL_PREFIX "/lib" );
-    QDir libexecDir( CMAKE_INSTALL_LIBEXECDIR );
+    QDir libexecDir( CMAKE_INSTALL_FULL_LIBEXECDIR );
 
     QDir lib64Dir( appDir );
     lib64Dir.cdUp();
diff --git a/src/sip/jabber/CMakeLists.txt b/src/sip/jabber/CMakeLists.txt
index 5e5294f22..3332dea97 100644
--- a/src/sip/jabber/CMakeLists.txt
+++ b/src/sip/jabber/CMakeLists.txt
@@ -64,7 +64,7 @@ IF( APPLE )
 #  SET( CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS} "-undefined dynamic_lookup" )
 ENDIF( APPLE )
 
-install( TARGETS tomahawk_sipjabber DESTINATION lib${LIB_SUFFIX} )
+install( TARGETS tomahawk_sipjabber DESTINATION ${CMAKE_INSTALL_LIBDIR} )
 
 if(BUILD_GUI)
     add_subdirectory(googlewrapper)
diff --git a/src/sip/jabber/googlewrapper/CMakeLists.txt b/src/sip/jabber/googlewrapper/CMakeLists.txt
index 6f9e310c7..ba0e11b55 100644
--- a/src/sip/jabber/googlewrapper/CMakeLists.txt
+++ b/src/sip/jabber/googlewrapper/CMakeLists.txt
@@ -29,4 +29,4 @@ target_link_libraries( tomahawk_sipgoogle
     tomahawklib
 )
 
-install( TARGETS tomahawk_sipgoogle DESTINATION lib${LIB_SUFFIX} )
+install( TARGETS tomahawk_sipgoogle DESTINATION ${CMAKE_INSTALL_LIBDIR} )
diff --git a/src/sip/twitter/CMakeLists.txt b/src/sip/twitter/CMakeLists.txt
index f5f0e7fd4..fc6037fb2 100644
--- a/src/sip/twitter/CMakeLists.txt
+++ b/src/sip/twitter/CMakeLists.txt
@@ -51,4 +51,4 @@ IF( APPLE )
 #  SET( CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS} "-undefined dynamic_lookup" )
 ENDIF( APPLE )
 
-install( TARGETS tomahawk_siptwitter DESTINATION lib${LIB_SUFFIX} )
+install( TARGETS tomahawk_siptwitter DESTINATION ${CMAKE_INSTALL_LIBDIR} )
diff --git a/src/sip/zeroconf/CMakeLists.txt b/src/sip/zeroconf/CMakeLists.txt
index c346cfa22..3a33cc577 100644
--- a/src/sip/zeroconf/CMakeLists.txt
+++ b/src/sip/zeroconf/CMakeLists.txt
@@ -42,4 +42,4 @@ IF( APPLE )
 #  SET( CMAKE_SHARED_LINKER_FLAGS ${CMAKE_SHARED_LINKER_FLAGS} "-undefined dynamic_lookup" )
 ENDIF( APPLE )
 
-install( TARGETS tomahawk_sipzeroconf DESTINATION lib${LIB_SUFFIX} )
+install( TARGETS tomahawk_sipzeroconf DESTINATION ${CMAKE_INSTALL_LIBDIR} )
diff --git a/thirdparty/libportfwd/CMakeLists.txt b/thirdparty/libportfwd/CMakeLists.txt
index 7c53626fc..d97f14ee8 100644
--- a/thirdparty/libportfwd/CMakeLists.txt
+++ b/thirdparty/libportfwd/CMakeLists.txt
@@ -48,10 +48,11 @@ ENDIF()
 
 INSTALL( TARGETS tomahawk_portfwd
     RUNTIME DESTINATION bin
-    LIBRARY DESTINATION lib${LIB_SUFFIX}
-    ARCHIVE DESTINATION lib${LIB_SUFFIX}
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
     BUNDLE DESTINATION library
 )
+
 #INSTALL(FILES include/portfwd/portfwddllmacro.h include/portfwd/portfwd.h DESTINATION include/portfwd)
 
 #ADD_EXECUTABLE(portfwd-demo