diff --git a/build/convert-lib-x64.py b/build/convert-lib-x64.py
new file mode 100644
index 00000000..71962098
--- /dev/null
+++ b/build/convert-lib-x64.py
@@ -0,0 +1,38 @@
+# script by Mikhail Titov
+# http://mail.gnome.org/archives/gtk-list/2011-March/msg00103.html
+
+import os,re,sys,shutil
+from os.path import join, getsize
+from subprocess import Popen, PIPE
+os.environ['PATH'] = os.environ['PATH'] + ";C:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\bin\\amd64;C:\\mozilla-build\\mingw64\\bin"
+#gendef = "C:\\workspace\\glibmm-2.27.99\\MSVC_Net2008\\gendef\\Win32\\Debug\\gendef.exe"
+#    dll = re.sub(".a", "", lib)
+#    output = Popen([gendef, d, dll, lib], stdout=PIPE).communicate()[0]
+
+def gen(dll):
+    name = re.sub("^lib", "", dll)
+    name = re.sub("(?:-\\d).dll", "", name)
+#    shutil.copyfile(lib, name + ".lib")
+    print("Working on %s\n" % dll)
+    output = Popen(["nm", "lib%s.dll.a" % name], stdout=PIPE).communicate()[0]
+    d = "%s.def" % name
+    with open(d, "wb") as f:
+        f.write(b"EXPORTS\n")
+        for line in output.split(b"\r\n"):
+            if (re.match(b".* T _|.* I __nm", line)): #|.* I __imp
+                line = re.sub(b"^.* T _|^.* I __nm__", b"", line) #|^.* I _
+                f.write(line + b"\n")
+        f.write(str.encode("LIBRARY %s\n" % dll))
+    p = Popen(["lib", "/machine:x64", "/def:%s" % d]) #, shell = True)
+
+root = "c:\\mozilla-build\\build\\xchat-wdk\\dep-x64"
+os.chdir(root + "\\lib")
+for root, dirs, files in os.walk(root + "\\bin"):
+    for name in files:
+        if (re.search(".dll", name)):
+            print("Processing: %s\n" % name)
+            gen(name)
+
+#gen("libatk-1.0-0.dll")
+#  glibmm-2.4.def libglibmm-2.4-1.dll libglibmm-2.4.dll.a
+# dumpbin /SYMBOLS /OUT:dumpbin.out libglibmm-2.4.dll.a
diff --git a/build/convert-lib-x86.py b/build/convert-lib-x86.py
new file mode 100644
index 00000000..dbf89b37
--- /dev/null
+++ b/build/convert-lib-x86.py
@@ -0,0 +1,38 @@
+# script by Mikhail Titov
+# http://mail.gnome.org/archives/gtk-list/2011-March/msg00103.html
+
+import os,re,sys,shutil
+from os.path import join, getsize
+from subprocess import Popen, PIPE
+os.environ['PATH'] = os.environ['PATH'] + ";C:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\Common7\\IDE;C:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\bin;C:\\mozilla-build\\mingw32\\bin"
+#gendef = "C:\\workspace\\glibmm-2.27.99\\MSVC_Net2008\\gendef\\Win32\\Debug\\gendef.exe"
+#    dll = re.sub(".a", "", lib)
+#    output = Popen([gendef, d, dll, lib], stdout=PIPE).communicate()[0]
+
+def gen(dll):
+    name = re.sub("^lib", "", dll)
+    name = re.sub("(?:-\\d).dll", "", name)
+#    shutil.copyfile(lib, name + ".lib")
+    print("Working on %s\n" % dll)
+    output = Popen(["nm", "lib%s.dll.a" % name], stdout=PIPE).communicate()[0]
+    d = "%s.def" % name
+    with open(d, "wb") as f:
+        f.write(b"EXPORTS\n")
+        for line in output.split(b"\r\n"):
+            if (re.match(b".* T _|.* I __nm", line)): #|.* I __imp
+                line = re.sub(b"^.* T _|^.* I __nm__", b"", line) #|^.* I _
+                f.write(line + b"\n")
+        f.write(str.encode("LIBRARY %s\n" % dll))
+    p = Popen(["lib", "/machine:x86", "/def:%s" % d]) #, shell = True)
+
+root = "c:\\mozilla-build\\build\\xchat-wdk\\dep-x86"
+os.chdir(root + "\\lib")
+for root, dirs, files in os.walk(root + "\\bin"):
+    for name in files:
+        if (re.search(".dll", name)):
+            print("Processing: %s\n" % name)
+            gen(name)
+
+#gen("libatk-1.0-0.dll")
+#  glibmm-2.4.def libglibmm-2.4-1.dll libglibmm-2.4.dll.a
+# dumpbin /SYMBOLS /OUT:dumpbin.out libglibmm-2.4.dll.a
diff --git a/build/dep-extract.bat b/build/dep-extract.bat
index c3aba497..1f8ac036 100644
--- a/build/dep-extract.bat
+++ b/build/dep-extract.bat
@@ -9,6 +9,10 @@ cd ..\dep-x86
 del *.cpio
 xcopy /q /s /i usr\i686-w64-mingw32\sys-root\mingw\* .
 rmdir /q /s usr
+set OPATH=%PATH%
+set PATH=%PATH%;c:\mozilla-build\python-2.7-x86
+python convert-lib.py
+set PATH=%OPATH%
 7z x *.zip
 7z x *.7z
 pause
diff --git a/src/makeinc.skel.mak b/src/makeinc.skel.mak
index 90751dcd..c34803c4 100644
--- a/src/makeinc.skel.mak
+++ b/src/makeinc.skel.mak
@@ -1,7 +1,7 @@
 CC = cl
 LINK = link
 CFLAGS = $(CFLAGS) /Ox /c /MD /MP /W0 /nologo
-CFLAGS = $(CFLAGS) /DWIN32 /DG_DISABLE_CAST_CHECKS /DG_DISABLE_DEPRECATED /DGDK_PIXBUF_DISABLE_DEPRECATED /DGDK_DISABLE_DEPRECATED /DUSE_IPV6 /DHAVE_STRTOULL /Dstrtoull=_strtoui64 /Dstrcasecmp=stricmp /Dstrncasecmp=strnicmp /DUSE_OPENSSL
+CFLAGS = $(CFLAGS) /DWIN32 /DG_DISABLE_CAST_CHECKS /DG_DISABLE_DEPRECATED /DGDK_PIXBUF_DISABLE_DEPRECATED /DGDK_DISABLE_DEPRECATED /DUSE_IPV6 /DHAVE_STRTOULL /Dstrtoull=_strtoui64 /Dstrcasecmp=stricmp /Dstrncasecmp=strnicmp
 CFLAGS = $(CFLAGS) /I$(DEV)\include
 CPPFLAGS = /c /MD /W0 /nologo /DWIN32
 LDFLAGS = /subsystem:windows /nologo
@@ -9,7 +9,7 @@ LIBS = $(LIBS) gdi32.lib shell32.lib user32.lib advapi32.lib imm32.lib ole32.lib
 
 GLIB = /I$(DEV)\include\glib-2.0 /I$(DEV)\lib\glib-2.0\include /I$(DEV)\include\libxml2
 GTK = /I$(DEV)\include\gtk-2.0 /I$(DEV)\lib\gtk-2.0\include /I$(DEV)\include\atk-1.0 /I$(DEV)\include\cairo /I$(DEV)\include\pango-1.0 /I$(DEV)\include\gdk-pixbuf-2.0
-LIBS = $(LIBS) /libpath:$(DEV)\lib libgtk-win32-2.0.dll.a libgdk-win32-2.0.dll.a libatk-1.0.dll.a libgio-2.0.dll.a libgdk_pixbuf-2.0.dll.a libpangowin32-1.0.dll.a libpangocairo-1.0.dll.a libpango-1.0.dll.a libcairo.dll.a libgobject-2.0.dll.a libgmodule-2.0.dll.a libglib-2.0.dll.a libintl.dll.a libxml2.dll.a
+LIBS = $(LIBS) /libpath:$(DEV)\lib gtk-win32-2.0.lib gdk-win32-2.0.lib atk-1.0.lib gio-2.0.lib gdk_pixbuf-2.0.lib pangowin32-1.0.lib pangocairo-1.0.lib pango-1.0.lib cairo.lib gobject-2.0.lib gmodule-2.0.lib glib-2.0.lib intl.lib xml2.lib
 
 LUALIB = lua51
 LUAOUTPUT = xclua.dll