diff --git a/backend_qt4/backend_dll.pro b/backend_qt4/backend_dll.pro
new file mode 100644
index 00000000..4da48477
--- /dev/null
+++ b/backend_qt4/backend_dll.pro
@@ -0,0 +1,86 @@
+TEMPLATE = lib
+
+CONFIG += dll
+
+macx{
+	CONFIG -= dll
+	CONFIG += lib_bundle
+}
+
+TARGET = QtZint2
+VERSION = 2.4.1
+
+INCLUDEPATH += ../backend
+
+
+DEFINES +=  _CRT_SECURE_NO_WARNINGS _CRT_NONSTDC_NO_WARNINGS ZINT_VERSION=\\\"$$VERSION\\\"
+
+!contains(DEFINES, NO_PNG) {
+    SOURCES += ../backend/png.c
+    LIBS += -lpng
+}
+
+HEADERS +=  ../backend/aztec.h \
+            ../backend/code1.h \
+            ../backend/code49.h \
+            ../backend/common.h \
+            ../backend/composite.h \
+            ../backend/dmatrix.h \
+            ../backend/font.h \
+            ../backend/gb2312.h \
+            ../backend/gridmtx.h \
+            ../backend/gs1.h \
+            ../backend/large.h \
+            ../backend/maxicode.h \
+            ../backend/maxipng.h \
+            ../backend/ms_stdint.h \
+            ../backend/pdf417.h \
+            ../backend/qr.h \
+            ../backend/reedsol.h \
+            ../backend/rss.h \
+            ../backend/sjis.h \
+            ../backend/zint.h \
+            qzint.h
+
+SOURCES += ../backend/2of5.c \
+           ../backend/auspost.c \
+           ../backend/aztec.c \
+           ../backend/code.c \
+           ../backend/code1.c \
+           ../backend/code128.c \
+           ../backend/code16k.c \
+           ../backend/code49.c \
+           ../backend/common.c \
+           ../backend/composite.c \
+           ../backend/dmatrix.c \
+           ../backend/gridmtx.c \
+           ../backend/gs1.c \
+           ../backend/imail.c \
+           ../backend/large.c \
+           ../backend/library.c \
+           ../backend/maxicode.c \
+           ../backend/medical.c \
+           ../backend/pdf417.c \
+           ../backend/plessey.c \
+           ../backend/postal.c \
+           ../backend/ps.c \
+           ../backend/qr.c \
+           ../backend/reedsol.c \
+           ../backend/render.c \
+           ../backend/rss.c \
+           ../backend/svg.c \
+           ../backend/telepen.c \
+           ../backend/upcean.c \
+           ../backend/dllversion.c \
+           qzint.cpp
+
+
+#DESTDIR = .
+
+include.path = $$[ZINT_INSTALL_HEADERS]
+include.files = ../backend/zint.h qzint.h
+
+target.path = $$[ZINT_INSTALL_LIBS]
+
+INSTALLS += target include
+