diff --git a/backend/gridmtx.c b/backend/gridmtx.c
index 5dfdd419..33d73635 100644
--- a/backend/gridmtx.c
+++ b/backend/gridmtx.c
@@ -171,7 +171,7 @@ static void define_mode(unsigned int gbdata[], const size_t length, char* mode,
 #ifndef _MSC_VER
     char char_modes[length][GM_NUM_MODES];
 #else
-    char* char_modes = (char*) _alloca(length * GM_NUM_MODES);
+    char** char_modes = (char**) _alloca(length * GM_NUM_MODES);
 #endif
     memset(char_modes, 0, length * GM_NUM_MODES);
 
diff --git a/backend/qr.c b/backend/qr.c
index 51567de4..52e81fe1 100644
--- a/backend/qr.c
+++ b/backend/qr.c
@@ -513,6 +513,22 @@ static void qr_binary(unsigned char datastream[], const int version, const int t
 /* Split data into blocks, add error correction and then interleave the blocks and error correction data */
 static void add_ecc(unsigned char fullstream[], const unsigned char datastream[], const int version, const int data_cw, const int blocks, int debug) {
     int ecc_cw;
+    int short_data_block_length;
+    int qty_long_blocks;
+    int qty_short_blocks;
+    int ecc_block_length;
+    int i, j, length_this_block, posn;
+#ifdef _MSC_VER
+    unsigned char* data_block;
+    unsigned char* ecc_block;
+    unsigned char* interleaved_data;
+    unsigned char* interleaved_ecc;
+#endif
+
+    short_data_block_length = data_cw / blocks;
+    qty_long_blocks = data_cw % blocks;
+    qty_short_blocks = blocks - qty_long_blocks;
+    ecc_block_length = ecc_cw / blocks;
 
     if (version < RMQR_VERSION) {
         ecc_cw = qr_total_codewords[version - 1] - data_cw;
@@ -520,11 +536,6 @@ static void add_ecc(unsigned char fullstream[], const unsigned char datastream[]
         ecc_cw = rmqr_total_codewords[version - RMQR_VERSION] - data_cw;
     }
 
-    int short_data_block_length = data_cw / blocks;
-    int qty_long_blocks = data_cw % blocks;
-    int qty_short_blocks = blocks - qty_long_blocks;
-    int ecc_block_length = ecc_cw / blocks;
-    int i, j, length_this_block, posn;
 
 #ifndef _MSC_VER
     unsigned char data_block[short_data_block_length + 2];
@@ -532,10 +543,10 @@ static void add_ecc(unsigned char fullstream[], const unsigned char datastream[]
     unsigned char interleaved_data[data_cw + 2];
     unsigned char interleaved_ecc[ecc_cw + 2];
 #else
-    unsigned char* data_block = (unsigned char *) _alloca(short_data_block_length + 2);
-    unsigned char* ecc_block = (unsigned char *) _alloca(ecc_block_length + 2);
-    unsigned char* interleaved_data = (unsigned char *) _alloca(data_cw + 2);
-    unsigned char* interleaved_ecc = (unsigned char *) _alloca(ecc_cw + 2);
+    data_block = (unsigned char *) _alloca(short_data_block_length + 2);
+    ecc_block = (unsigned char *) _alloca(ecc_block_length + 2);
+    interleaved_data = (unsigned char *) _alloca(data_cw + 2);
+    interleaved_ecc = (unsigned char *) _alloca(ecc_cw + 2);
 #endif
 
     posn = 0;
diff --git a/backend_qt/backend_qt.pro b/backend_qt/backend_qt.pro
index a8ab4842..f44ac70f 100644
--- a/backend_qt/backend_qt.pro
+++ b/backend_qt/backend_qt.pro
@@ -109,7 +109,6 @@ SOURCES += ../backend/2of5.c \
            ../backend/ps.c \
            ../backend/raster.c \
            ../backend/reedsol.c \
-            ../backend/render.c \
            ../backend/rss.c \
            ../backend/sjis.c \
            ../backend/svg.c \
diff --git a/backend_tcl/configure.in b/backend_tcl/configure.in
index 82efba66..9dc28c0b 100644
--- a/backend_tcl/configure.in
+++ b/backend_tcl/configure.in
@@ -84,6 +84,8 @@ TEA_ADD_SOURCES([
 	../backend/dmatrix.c
 	../backend/dotcode.c
 	../backend/eci.c
+    ../backend/gb2312.c
+    ../backend/general_field.c
 	../backend/gif.c
 	../backend/gridmtx.c
 	../backend/gs1.c
@@ -91,6 +93,7 @@ TEA_ADD_SOURCES([
 	../backend/imail.c
 	../backend/large.c
 	../backend/library.c
+    ../backend/mailmark.c
 	../backend/maxicode.c
 	../backend/medical.c
 	../backend/pcx.c
@@ -102,8 +105,8 @@ TEA_ADD_SOURCES([
 	../backend/qr.c
 	../backend/raster.c
 	../backend/reedsol.c
-	../backend/render.c
 	../backend/rss.c
+    ../backend/sjis.c
 	../backend/svg.c
 	../backend/telepen.c
 	../backend/tif.c
diff --git a/backend_tcl/zint_tcl.dsp b/backend_tcl/zint_tcl.dsp
index bfe77384..cff3e598 100644
--- a/backend_tcl/zint_tcl.dsp
+++ b/backend_tcl/zint_tcl.dsp
@@ -240,10 +240,6 @@ SOURCE=..\backend\reedsol.c
 # End Source File
 # Begin Source File
 
-SOURCE=..\backend\render.c
-# End Source File
-# Begin Source File
-
 SOURCE=..\backend\rss.c
 # End Source File
 # Begin Source File
diff --git a/frontend_qt/frontend_qt.pro b/frontend_qt/frontend_qt.pro
index 6084217e..cc59273b 100644
--- a/frontend_qt/frontend_qt.pro
+++ b/frontend_qt/frontend_qt.pro
@@ -28,13 +28,14 @@ FORMS += extData.ui \
          grpDBExtend.ui \
          grpDM.ui \
          grpGrid.ui \
+         grpHX.ui \
          grpMaxicode.ui \
          grpMicroPDF.ui \
          grpMQR.ui \
          grpMSICheck.ui \
          grpPDF417.ui \
          grpQR.ui \
-         grpHX.ui \
+         grpRMQR.ui \
          mainWindow.ui \
          grpDotCode.ui
 
diff --git a/win32/zint_cmdline_vc6/zint_cmdline_vc6.dsp b/win32/zint_cmdline_vc6/zint_cmdline_vc6.dsp
index d0da17d4..2c6e28fa 100644
--- a/win32/zint_cmdline_vc6/zint_cmdline_vc6.dsp
+++ b/win32/zint_cmdline_vc6/zint_cmdline_vc6.dsp
@@ -248,10 +248,6 @@ SOURCE=..\..\backend\reedsol.c
 # End Source File
 # Begin Source File
 
-SOURCE=..\..\backend\render.c
-# End Source File
-# Begin Source File
-
 SOURCE=..\..\backend\rss.c
 # End Source File
 # Begin Source File