diff --git a/bazaar/OpenCV/OpenCV.cpp b/bazaar/OpenCV/OpenCV.cpp
index 940f014bf..96cf39101 100644
--- a/bazaar/OpenCV/OpenCV.cpp
+++ b/bazaar/OpenCV/OpenCV.cpp
@@ -9,11 +9,11 @@ IplImage *ImageToCv(Image &img, bool iscolor) {
 	for (int y = 0; y < img.GetHeight(); y++) {
 		uchar* ptr = (uchar*) (src->imageData + y * src->widthStep);
 		for (int x = 0; x < img.GetWidth(); x++) {
-			if (iscolor) {
+			if (iscolor) { 
 				ptr[3*x] = img[y][x].r;
 				ptr[3*x+1] = img[y][x].g;
 				ptr[3*x+2] = img[y][x].b;
-			} else
+			} else 
 				ptr[x] = Grayscale(img[y][x]);
 		}
 	}
diff --git a/bazaar/OpenCV/OpenCV.h b/bazaar/OpenCV/OpenCV.h
index 60faf1693..f7eae6e87 100644
--- a/bazaar/OpenCV/OpenCV.h
+++ b/bazaar/OpenCV/OpenCV.h
@@ -1,17 +1,27 @@
 #ifndef _OpenCV_OpenCV_h_
 #define _OpenCV_OpenCV_h_
 
+
 #include <CtrlLib/CtrlLib.h>
+
+#define int64 undef_int64
+#define uint64 undef_uint64
+#define CPU_SSE2 undef_CPU_SSE2
+
 #include <opencv/cv.h>
 #include <opencv/highgui.h>
 
-using namespace Upp;
+#undef int64 
+#undef uint64 
+#undef CPU_SSE2 
 
 #include <Controls4U/Controls4U.h>
 
+using namespace Upp;
+
+
 IplImage *ImageToCv(Image &img, bool iscolor = false);
 Image CvToImage(IplImage *imgCV);
-
 class ImageWindow : public TopWindow {
 typedef ImageWindow CLASSNAME;
 public:
diff --git a/bazaar/OpenCV/OpenCV.upp b/bazaar/OpenCV/OpenCV.upp
index 78e6ee6be..fb4bb8fa9 100644
--- a/bazaar/OpenCV/OpenCV.upp
+++ b/bazaar/OpenCV/OpenCV.upp
@@ -3,7 +3,7 @@ uses
 	plugin\jpg,
 	Controls4U;
 
-library(WIN32) "opencv_core240d opencv_highgui240d opencv_calib3d240d opencv_features2d240d opencv_imgproc240d  opencv_video240d opencv_videostab240d vfw32 libjasperd libjpegd libpngd libtiffd ";
+library(WIN32) opencv_world341.lib;
 
 library(!WIN32) "opencv_core opencv_highgui opencv_calib3d opencv_features2d opencv_imgproc opencv_video";
 
diff --git a/bazaar/OpenCV/srcdoc.tpp/OpenCV_en-us.tpp b/bazaar/OpenCV/srcdoc.tpp/OpenCV_en-us.tpp
index b4ed7a715..fb3cbd076 100644
--- a/bazaar/OpenCV/srcdoc.tpp/OpenCV_en-us.tpp
+++ b/bazaar/OpenCV/srcdoc.tpp/OpenCV_en-us.tpp
@@ -1,6 +1,6 @@
 topic "OpenCV";
-[ $$0,0#00000000000000000000000000000000:Default]
 [a83;*R6 $$1,0#31310162474203024125188417583966:caption]
+[ $$0,0#00000000000000000000000000000000:Default]
 [{_}%EN-US 
 [s1; [+184 OpenCV]&]
 [s0;# [^http`:`/`/opencv`.org`/^2 OpenCV][2  is a C library for real 
@@ -11,24 +11,26 @@ U`+`+ and the necessary libraries.]&]
 [s0;#2 &]
 [s0;# [2 To install it please remember to set `"Build methods`" menu:]&]
 [s0;i150;O0; [2 INCLUDE directories]&]
-[s0;l288; [2 `\plugin`\OpenCV`\include]&]
-[s0;l288; [2 `\plugin`\OpenCV`\include`\opencv]&]
+[s0;l288; [2 plugin`\OpenCV`\include]&]
+[s0;l288; [2 plugin`\OpenCV`\include`\opencv]&]
 [s0;l288;2 &]
 [s0;i150;O0; [2 LIB directories]&]
-[s0;l288; [2 `\plugin`\OpenCV`\lib]&]
+[s0;l288; [2 plugin`\OpenCV`\lib]&]
 [s0;2 &]
 [s0;i150;O0; [2 PATH `- executable directories]&]
-[s0;#l288; [2 `\plugin`\OpenCV`\bin]&]
+[s0;#l288; [2 plugin`\OpenCV`\bin]&]
 [s0;#2 &]
 [s0;#2 &]
-[s0;# [2 To ease the install there is ][^https`:`/`/sourceforge`.net`/projects`/upp`/files`/GPL`-sources`/OpenCV`_2`_2`_0`%20plugin`_BSD`.7z`/download^2 h
-ere][2  a packaged 2.2.0 version (OpenCV`_2`_2`_0 plugin`_BSD.7z) 
-with the basic folders. Just download and copy it in your /uppsrc/plugin 
-folder.]&]
+[s0;# [2 To ease the install there is ][^https`:`/`/sourceforge`.net`/projects`/opencvlibrary`/files`/opencv`-win`/3`.4`.1`/opencv`-3`.4`.1`-vc14`_vc15`.exe`/download^2 h
+ere][2  a packaged 3.4.1 version. For Visual Studio 2015, download 
+and copy in your uppsrc/plugin folder:]&]
+[s0;#i150;O0; [2 build`\include to plugin`\OpenCV`\include]&]
+[s0;#i150;O0; [2 build`\x64`\vc15`\bin to plugin`\OpenCV`\bin]&]
+[s0;#i150;O0; [2 build`\x64`\vc15`\lib to plugin`\OpenCV`\lib]&]
 [s0;2 &]
-[s0;# [2 There is also a sample package (OpenCV`_demo) to ease even 
-more its use for U`+`+ users. It uses the Hough Transform to 
-detect straight lines in an image.]&]
+[s0;# [2 There is a sample package (OpenCV`_demo) to ease its use for 
+U`+`+ users. It uses the Hough Transform to detect straight lines 
+in an image.]&]
 [s0;2 &]
 [s0;i150;O0; [2 Original image:]&]
 [s0;2 &]