diff --git a/docs/OCR.txt b/docs/OCR.txt
index 841fa83b..13f51870 100644
--- a/docs/OCR.txt
+++ b/docs/OCR.txt
@@ -53,3 +53,44 @@ Compile CCextractor passing flags like following
 -------------------------------------------------
 make ENABLE_OCR=yes
 
+
+How to compile ccextractor  on Windows with OCR
+=============================================
+
+Download prebuild library of leptonica from following link
+http://www.leptonica.com/source/leptonica-1.68-win32-lib-include-dirs.zip
+
+Download prebuild library of tesseract from following tesseract official link
+https://code.google.com/p/tesseract-ocr/downloads/detail?name=tesseract-3.02.02-win32-lib-include-dirs.zip
+
+put the path of libs/include of leptonica and tesseract in library paths.
+step 1) In visual studio 2013 right click <Project> and select property.
+step 2) Select Configuration properties in left panel(column) of property.
+step 3) Select VC++ Directory.
+step 4) In the right pane, in the right-hand column of the VC++ Directory property,
+	open the drop-down menu and choose Edit.
+Step 5) Add path of Directory where you have kept uncompressed library of leptonica
+	and tesseract.
+
+
+Set preprocessor flag ENABLE_OCR=1
+Step 1)In visual studio 2013 right click <Project> and select property.
+Step 2)In the left panel, select Configuration Properties, C/C++, Preprocessor.
+Step 3)In the right panel, in the right-hand column of the Preprocessor Definitions property, open the drop-down menu and choose Edit.
+Step 4)In the Preprocessor Definitions dialog box, add ENABLE_OCR=1. Choose OK to save your changes.
+
+Add library in linker
+step 1)Open property of project
+Step 2)Select Configuration properties
+Step 3)Select Linker in left panel(column)
+Step 4)Select Input
+Step 5)Select Additional dependencies in right panel
+Step 6)Add libtesseract302.lib in new line
+Step 7)Add liblept168.lib in new line
+
+Download language data from following link
+https://code.google.com/p/tesseract-ocr/downloads/list
+after downloading the tesseract-ocr-3.02.eng.tar extract the tar file and put
+tessdata folder where you have kept ccextractor executable
+
+Copy the tesseract and leptonica dll in the folder of executable or in system32.
\ No newline at end of file
diff --git a/src/dvb_subtitle_decoder.c b/src/dvb_subtitle_decoder.c
index 4e29db58..f94a935a 100644
--- a/src/dvb_subtitle_decoder.c
+++ b/src/dvb_subtitle_decoder.c
@@ -423,7 +423,7 @@ static int save_spupng(const char *filename, uint8_t *bitmap, int w, int h,
 	png_structp png_ptr = NULL;
 	png_infop info_ptr = NULL;
 	png_bytep* row_pointer = NULL;
-	int i, j, ret;
+	int i, j, ret = 0;
 	int k = 0;
 	if(!h)
 		h = 1;
diff --git a/src/ocr.c b/src/ocr.c
index 458523fb..3d131720 100644
--- a/src/ocr.c
+++ b/src/ocr.c
@@ -1,5 +1,6 @@
 #include "png.h"
 #ifdef ENABLE_OCR
+#include "platform.h"
 #include "capi.h"
 #include "allheaders.h"
 
@@ -20,7 +21,9 @@ char* ocr_bitmap(png_color *palette,png_byte *alpha, unsigned char* indata,int w
 	}
 	wpl = pixGetWpl(pix);
 	data = pixGetData(pix);
+#if LEPTONICA_VERSION > 69
 	pixSetSpp(pix, 4);
+#endif
 	for (i = 0; i < h; i++)
 	{
 		ppixel = data + i * wpl; 
diff --git a/windows/ccextractor.sln b/windows/ccextractor.sln
index 803ce28a..3e757fed 100644
--- a/windows/ccextractor.sln
+++ b/windows/ccextractor.sln
@@ -1,18 +1,26 @@
 
-Microsoft Visual Studio Solution File, Format Version 10.00
-# Visual C++ Express 2008
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ccextractor", "ccextractor.vcproj", "{0F0063C4-BCBC-4379-A6D5-84A5669C940A}"
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Express 2013 for Windows Desktop
+VisualStudioVersion = 12.0.21005.1
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "ccextractor", "ccextractor.vcxproj", "{0F0063C4-BCBC-4379-A6D5-84A5669C940A}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Win32 = Debug|Win32
+		Debug|x64 = Debug|x64
 		Release|Win32 = Release|Win32
+		Release|x64 = Release|x64
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{0F0063C4-BCBC-4379-A6D5-84A5669C940A}.Debug|Win32.ActiveCfg = Debug|Win32
 		{0F0063C4-BCBC-4379-A6D5-84A5669C940A}.Debug|Win32.Build.0 = Debug|Win32
+		{0F0063C4-BCBC-4379-A6D5-84A5669C940A}.Debug|x64.ActiveCfg = Debug|x64
+		{0F0063C4-BCBC-4379-A6D5-84A5669C940A}.Debug|x64.Build.0 = Debug|x64
 		{0F0063C4-BCBC-4379-A6D5-84A5669C940A}.Release|Win32.ActiveCfg = Release|Win32
 		{0F0063C4-BCBC-4379-A6D5-84A5669C940A}.Release|Win32.Build.0 = Release|Win32
+		{0F0063C4-BCBC-4379-A6D5-84A5669C940A}.Release|x64.ActiveCfg = Release|x64
+		{0F0063C4-BCBC-4379-A6D5-84A5669C940A}.Release|x64.Build.0 = Release|x64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE