diff --git a/DSView/main.cpp b/DSView/main.cpp
index 0fce15d8..d0cb7161 100755
--- a/DSView/main.cpp
+++ b/DSView/main.cpp
@@ -42,7 +42,7 @@
 
 void usage()
 {
-	fprintf(stdout,
+	printf(
 		"Usage:\n"
 		"  %s [OPTION…] [FILE] — %s\n"
 		"\n"
@@ -132,7 +132,7 @@ int main(int argc, char *argv[])
 
 		case 'V':
 			// Print version info
-			fprintf(stdout, "%s %s\n", DS_TITLE, DS_VERSION_STRING);
+			printf("%s %s\n", DS_TITLE, DS_VERSION_STRING);
 			return 0;
 
 		case 'h':
@@ -143,7 +143,7 @@ int main(int argc, char *argv[])
 	}
 
     if (argcFinal - optind > 1) {
-		fprintf(stderr, "Only one file can be openened.\n");
+		printf("Only one file can be openened.\n");
 		return 1;
     } else if (argcFinal - optind == 1){
         open_file = argvFinal[argcFinal - 1];
@@ -159,7 +159,7 @@ int main(int argc, char *argv[])
 
 	//init core
 	if (!control->Init()){
-        fprintf(stderr, "init error!");
+        printf("init error!");
         qDebug() << control->GetLastError();
 		return 1;
 	}
@@ -183,7 +183,7 @@ int main(int argc, char *argv[])
 	}
 	catch (const std::exception &e)
 	{
-        fprintf(stderr, "main() catch a except!");
+        printf("main() catch a except!");
 		const char *exstr = e.what();
 		qDebug() << exstr;
 	}
diff --git a/DSView/pv/appcontrol.cpp b/DSView/pv/appcontrol.cpp
index 52275e88..15c0e52d 100644
--- a/DSView/pv/appcontrol.cpp
+++ b/DSView/pv/appcontrol.cpp
@@ -75,7 +75,18 @@ bool AppControl::Init()
     } 
 
     QString resdir = GetResourceDir();
-	sr_set_firmware_resource_dir(resdir.toUtf8());
+	sr_set_firmware_resource_dir(resdir.toUtf8().data());
+
+#ifdef _WIN32
+    QString pythonHome = GetAppDataDir() + "/Python";   
+    QDir pydir;
+    if (pydir.exists(pythonHome)){
+          srd_set_python_home(pythonHome.toUtf8().data());
+    }else{
+        qDebug()<<"python home directory not exists,"<<pythonHome;        
+    }
+  
+#endif
     
     QString dir = GetAppDataDir() + "/decoders";
     char path[256] = {0};
diff --git a/DSView/pv/sigsession.cpp b/DSView/pv/sigsession.cpp
index 0806c8ba..d3d9a848 100755
--- a/DSView/pv/sigsession.cpp
+++ b/DSView/pv/sigsession.cpp
@@ -23,6 +23,7 @@
 
 #include <libsigrokdecode4DSL/libsigrokdecode.h>
 
+
 #include "sigsession.h"
 #include "mainwindow.h"
 #include "devicemanager.h"
diff --git a/DSView/pv/sigsession.h b/DSView/pv/sigsession.h
index 7f478af0..ca38e3bd 100755
--- a/DSView/pv/sigsession.h
+++ b/DSView/pv/sigsession.h
@@ -22,9 +22,7 @@
 
 #ifndef DSVIEW_PV_SIGSESSION_H
 #define DSVIEW_PV_SIGSESSION_H
-
-#include <libsigrok4DSL/libsigrok.h>
-   
+ 
 #include <set>
 #include <string>
 #include <vector>
@@ -39,8 +37,11 @@
 #include "interface/icallbacks.h"
 #include "dstimer.h"
 
+#include <libsigrok4DSL/libsigrok.h>
+
 struct srd_decoder;
 struct srd_channel;
+ 
 
 class DecoderStatus;
 
diff --git a/DSView/pv/toolbars/titlebar.cpp b/DSView/pv/toolbars/titlebar.cpp
index 982fab1d..aae90e15 100755
--- a/DSView/pv/toolbars/titlebar.cpp
+++ b/DSView/pv/toolbars/titlebar.cpp
@@ -188,7 +188,8 @@ void TitleBar::setRestoreButton(bool max)
   
 void TitleBar::mousePressEvent(QMouseEvent* event)
 { 
-    if(event->button() == Qt::LeftButton && !parentWidget()->isMaximized()) {
+    if(event->button() == Qt::LeftButton && !parentWidget()->isMaximized()) 
+    {
         int x = event->pos().x();
         int y = event->pos().y(); 
         bool bTopWidow = app::is_app_top_window(_parent);
diff --git a/INSTALL b/INSTALL
index 94bdb080..abe9eafe 100755
--- a/INSTALL
+++ b/INSTALL
@@ -26,6 +26,7 @@ Requirements
 	This is part of the standard OpenBSD install (not an extra package), apparently.
  - check >= 0.9.4 (optional, only needed to run unit tests)
  - libfftw3 >= 3.3
+ - zlib
 
 Building and installing
 -----------------------
diff --git a/libsigrokdecode4DSL/libsigrokdecode.h b/libsigrokdecode4DSL/libsigrokdecode.h
index 491c3371..d66cc74e 100755
--- a/libsigrokdecode4DSL/libsigrokdecode.h
+++ b/libsigrokdecode4DSL/libsigrokdecode.h
@@ -361,6 +361,7 @@ struct srd_pd_callback {
 SRD_API int srd_init(const char *path);
 SRD_API int srd_exit(void);
 SRD_API GSList *srd_searchpaths_get(void);
+SRD_API void srd_set_python_home(const char *path);
 
 /* session.c */
 SRD_API int srd_session_new(struct srd_session **sess);
diff --git a/libsigrokdecode4DSL/srd.c b/libsigrokdecode4DSL/srd.c
index 92be591f..caec1fd0 100755
--- a/libsigrokdecode4DSL/srd.c
+++ b/libsigrokdecode4DSL/srd.c
@@ -386,4 +386,10 @@ SRD_API GSList *srd_searchpaths_get(void)
 	return paths;
 }
 
+//set python home directory
+SRD_API void srd_set_python_home(const char *path)
+{
+	Py_SetPythonHome((wchar_t*)path);
+}
+
 /** @} */
diff --git a/qtpro/DSView.pro b/qtpro/DSView.pro
index c3540636..575d247e 100644
--- a/qtpro/DSView.pro
+++ b/qtpro/DSView.pro
@@ -13,8 +13,9 @@ QT += svg
 CONFIG += exceptions
 CONFIG += object_parallel_to_source
 
-greaterThan(QT_MAJOR_VERSION, 4): CONFIG += c++11
-greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
+//QT += core5compat
+CONFIG += c++11
+QT += widgets
 
 #QMAKE_CFLAGS_ISYSTEM = -I
 
diff --git a/qtpro/DSView.pro.user b/qtpro/DSView.pro.user
index 994a2dc4..536a527e 100644
--- a/qtpro/DSView.pro.user
+++ b/qtpro/DSView.pro.user
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE QtCreatorProject>
-<!-- Written by QtCreator 4.11.0, 2021-12-03T18:50:47. -->
+<!-- Written by QtCreator 4.11.0, 2021-12-10T18:13:59. -->
 <qtcreator>
  <data>
   <variable>EnvironmentId</variable>