diff --git a/mkspecs/win32-msvc.net/qmake.conf b/mkspecs/win32-msvc.net/qmake.conf
index 89fa00d..7f9401d 100644
--- a/mkspecs/win32-msvc.net/qmake.conf
+++ b/mkspecs/win32-msvc.net/qmake.conf
@@ -20,7 +20,7 @@ QMAKE_YACCFLAGS		= -d
 QMAKE_CFLAGS		= -nologo -Zm300
 QMAKE_CFLAGS_WARN_ON	= -W3
 QMAKE_CFLAGS_WARN_OFF	= -W0 
-QMAKE_CFLAGS_RELEASE	= -O2 -MD
+QMAKE_CFLAGS_RELEASE	= -O2 -MT
 QMAKE_CFLAGS_DEBUG	= -Zi -MDd
 QMAKE_CFLAGS_YACC	=
 
@@ -31,11 +31,11 @@ QMAKE_CXXFLAGS_WARN_OFF	= $$QMAKE_CFLAGS_WARN_OFF
 QMAKE_CXXFLAGS_RELEASE	= $$QMAKE_CFLAGS_RELEASE
 QMAKE_CXXFLAGS_DEBUG	= $$QMAKE_CFLAGS_DEBUG
 QMAKE_CXXFLAGS_YACC	= $$QMAKE_CFLAGS_YACC
-QMAKE_CXXFLAGS_STL_ON	= -EHsc
+QMAKE_CXXFLAGS_STL_ON	=
 QMAKE_CXXFLAGS_STL_OFF	=
 QMAKE_CXXFLAGS_RTTI_ON	= -GR
 QMAKE_CXXFLAGS_RTTI_OFF	=
-QMAKE_CXXFLAGS_EXCEPTIONS_ON = -EHsc
+QMAKE_CXXFLAGS_EXCEPTIONS_ON =
 QMAKE_CXXFLAGS_EXCEPTIONS_OFF =
 
 QMAKE_INCDIR		=
diff --git a/mkspecs/win32-msvc/qmake.conf b/mkspecs/win32-msvc/qmake.conf
index 64ab84a..7bc0d78 100644
--- a/mkspecs/win32-msvc/qmake.conf
+++ b/mkspecs/win32-msvc/qmake.conf
@@ -19,7 +19,7 @@ QMAKE_YACCFLAGS		= -d
 QMAKE_CFLAGS		= -nologo -Zm200
 QMAKE_CFLAGS_WARN_ON	= -W3
 QMAKE_CFLAGS_WARN_OFF	= -W0
-QMAKE_CFLAGS_RELEASE	= -O1 -MD
+QMAKE_CFLAGS_RELEASE	= -O1 -MT
 QMAKE_CFLAGS_DEBUG	= -Zi -MDd
 QMAKE_CFLAGS_YACC	=
 
diff --git a/mkspecs/win32-msvc2002/qmake.conf b/mkspecs/win32-msvc2002/qmake.conf
index 13fbfb0..1622e6b 100644
--- a/mkspecs/win32-msvc2002/qmake.conf
+++ b/mkspecs/win32-msvc2002/qmake.conf
@@ -19,7 +19,7 @@ QMAKE_YACCFLAGS		= -d
 QMAKE_CFLAGS		= -nologo -Zm300
 QMAKE_CFLAGS_WARN_ON	= -W3
 QMAKE_CFLAGS_WARN_OFF	= -W0 
-QMAKE_CFLAGS_RELEASE	= -O2 -MD
+QMAKE_CFLAGS_RELEASE	= -O2 -MT
 QMAKE_CFLAGS_DEBUG	= -Zi -MDd
 QMAKE_CFLAGS_YACC	=
 
@@ -30,11 +30,11 @@ QMAKE_CXXFLAGS_WARN_OFF	= $$QMAKE_CFLAGS_WARN_OFF
 QMAKE_CXXFLAGS_RELEASE	= $$QMAKE_CFLAGS_RELEASE
 QMAKE_CXXFLAGS_DEBUG	= $$QMAKE_CFLAGS_DEBUG
 QMAKE_CXXFLAGS_YACC	= $$QMAKE_CFLAGS_YACC
-QMAKE_CXXFLAGS_STL_ON	= -EHsc
+QMAKE_CXXFLAGS_STL_ON	=
 QMAKE_CXXFLAGS_STL_OFF	=
 QMAKE_CXXFLAGS_RTTI_ON	= -GR
 QMAKE_CXXFLAGS_RTTI_OFF	=
-QMAKE_CXXFLAGS_EXCEPTIONS_ON = -EHsc
+QMAKE_CXXFLAGS_EXCEPTIONS_ON =
 QMAKE_CXXFLAGS_EXCEPTIONS_OFF =
 
 QMAKE_INCDIR		=
diff --git a/mkspecs/win32-msvc2003/qmake.conf b/mkspecs/win32-msvc2003/qmake.conf
index e92df12..519177f 100644
--- a/mkspecs/win32-msvc2003/qmake.conf
+++ b/mkspecs/win32-msvc2003/qmake.conf
@@ -19,7 +19,7 @@ QMAKE_YACCFLAGS         = -d
 QMAKE_CFLAGS            = -nologo -Zm300
 QMAKE_CFLAGS_WARN_ON    = -W3
 QMAKE_CFLAGS_WARN_OFF   = -W0
-QMAKE_CFLAGS_RELEASE    = -O2 -MD
+QMAKE_CFLAGS_RELEASE    = -O2 -MT
 QMAKE_CFLAGS_DEBUG      = -Zi -MDd
 QMAKE_CFLAGS_YACC       =
 
@@ -30,11 +30,11 @@ QMAKE_CXXFLAGS_WARN_OFF = $$QMAKE_CFLAGS_WARN_OFF
 QMAKE_CXXFLAGS_RELEASE  = $$QMAKE_CFLAGS_RELEASE
 QMAKE_CXXFLAGS_DEBUG    = $$QMAKE_CFLAGS_DEBUG
 QMAKE_CXXFLAGS_YACC     = $$QMAKE_CFLAGS_YACC
-QMAKE_CXXFLAGS_STL_ON   = -EHsc
+QMAKE_CXXFLAGS_STL_ON   =
 QMAKE_CXXFLAGS_STL_OFF  =
 QMAKE_CXXFLAGS_RTTI_ON  = -GR
 QMAKE_CXXFLAGS_RTTI_OFF =
-QMAKE_CXXFLAGS_EXCEPTIONS_ON = -EHsc
+QMAKE_CXXFLAGS_EXCEPTIONS_ON =
 QMAKE_CXXFLAGS_EXCEPTIONS_OFF =
 
 QMAKE_INCDIR            =
diff --git a/mkspecs/win32-msvc2005/qmake.conf b/mkspecs/win32-msvc2005/qmake.conf
index 00287cb..45c5427 100644
--- a/mkspecs/win32-msvc2005/qmake.conf
+++ b/mkspecs/win32-msvc2005/qmake.conf
@@ -19,7 +19,7 @@ QMAKE_YACCFLAGS         = -d
 QMAKE_CFLAGS            = -nologo -Zm200 -Zc:wchar_t-
 QMAKE_CFLAGS_WARN_ON    = -W3
 QMAKE_CFLAGS_WARN_OFF   = -W0
-QMAKE_CFLAGS_RELEASE    = -O2 -MD -GL
+QMAKE_CFLAGS_RELEASE    = -O2 -MT -GL
 QMAKE_CFLAGS_DEBUG      = -Zi -MDd
 QMAKE_CFLAGS_YACC       =
 
@@ -30,11 +30,11 @@ QMAKE_CXXFLAGS_WARN_OFF = $$QMAKE_CFLAGS_WARN_OFF
 QMAKE_CXXFLAGS_RELEASE  = $$QMAKE_CFLAGS_RELEASE
 QMAKE_CXXFLAGS_DEBUG    = $$QMAKE_CFLAGS_DEBUG
 QMAKE_CXXFLAGS_YACC     = $$QMAKE_CFLAGS_YACC
-QMAKE_CXXFLAGS_STL_ON   = -EHsc
+QMAKE_CXXFLAGS_STL_ON   =
 QMAKE_CXXFLAGS_STL_OFF  =
 QMAKE_CXXFLAGS_RTTI_ON  = -GR
 QMAKE_CXXFLAGS_RTTI_OFF =
-QMAKE_CXXFLAGS_EXCEPTIONS_ON = -EHsc
+QMAKE_CXXFLAGS_EXCEPTIONS_ON =
 QMAKE_CXXFLAGS_EXCEPTIONS_OFF =
 
 QMAKE_INCDIR            =
diff --git a/mkspecs/win32-msvc2008/qmake.conf b/mkspecs/win32-msvc2008/qmake.conf
index b56b41c..61aee6d 100644
--- a/mkspecs/win32-msvc2008/qmake.conf
+++ b/mkspecs/win32-msvc2008/qmake.conf
@@ -19,7 +19,7 @@ QMAKE_YACCFLAGS         = -d
 QMAKE_CFLAGS            = -nologo -Zm200 -Zc:wchar_t-
 QMAKE_CFLAGS_WARN_ON    = -W3
 QMAKE_CFLAGS_WARN_OFF   = -W0
-QMAKE_CFLAGS_RELEASE    = -O2 -MD -GL
+QMAKE_CFLAGS_RELEASE    = -O2 -MT -GL
 QMAKE_CFLAGS_DEBUG      = -Zi -MDd
 QMAKE_CFLAGS_YACC       =
 
@@ -30,11 +30,11 @@ QMAKE_CXXFLAGS_WARN_OFF = $$QMAKE_CFLAGS_WARN_OFF
 QMAKE_CXXFLAGS_RELEASE  = $$QMAKE_CFLAGS_RELEASE
 QMAKE_CXXFLAGS_DEBUG    = $$QMAKE_CFLAGS_DEBUG
 QMAKE_CXXFLAGS_YACC     = $$QMAKE_CFLAGS_YACC
-QMAKE_CXXFLAGS_STL_ON   = -EHsc
+QMAKE_CXXFLAGS_STL_ON   =
 QMAKE_CXXFLAGS_STL_OFF  =
 QMAKE_CXXFLAGS_RTTI_ON  = -GR
 QMAKE_CXXFLAGS_RTTI_OFF =
-QMAKE_CXXFLAGS_EXCEPTIONS_ON = -EHsc
+QMAKE_CXXFLAGS_EXCEPTIONS_ON =
 QMAKE_CXXFLAGS_EXCEPTIONS_OFF =
 
 QMAKE_INCDIR            =