diff --git a/development/scons/SConstruct b/development/scons/SConstruct
index a23b07f00b..1c33dcd692 100644
--- a/development/scons/SConstruct
+++ b/development/scons/SConstruct
@@ -1055,6 +1055,8 @@ result = utils.createConfigFile(conf,
             'Top source directory'),
         ('#define BOOST_ALL_NO_LIB 1',
             'disable automatic linking of boost libraries.'),
+        ('#define LYX_USE_TR1 1',
+            'use TR1'),    
         ('#define USE_%s_PACKAGING 1' % packaging_method.upper(),
             'Packaging method'),
         ('#define AIKSAURUS_H_LOCATION ' + aik_location,
@@ -1396,13 +1398,12 @@ if frontend == 'qt4':
         print 'uic or moc command is not found for frontend', frontend
         Exit(1)
     
-    # now, if msvc2005 is used, we will need to embed lyx.exe.manifest to lyx.exe
-    # NOTE: previously, lyx.exe had to be linked to some qt manifest to work.
-    # For some unknown changes in msvc or qt, this is no longer needed.
-    if use_vc:
-        env['LINKCOM'] = [env['LINKCOM'], \
-            'mt.exe /MANIFEST %s /outputresource:$TARGET;1' % \
-            env.File('$BUILDDIR/lyx.exe.manifest').path]
+    # if MSVC 2005 and 2008 is used, we will need to embed lyx.exe.manifest to lyx.exe
+    # for MSVC 2010 this is not necessary
+    #if use_vc:
+    #    env['LINKCOM'] = [env['LINKCOM'], \
+    #        'mt.exe /MANIFEST %s /outputresource:$TARGET;1' % \
+    #        env.File('$BUILDDIR/lyx.exe.manifest').path]
 
     env = conf.Finish()