diff --git a/src/app/dialogs/app/dialogaboutapp.cpp b/src/app/dialogs/app/dialogaboutapp.cpp
index 317242837..aa9b69050 100644
--- a/src/app/dialogs/app/dialogaboutapp.cpp
+++ b/src/app/dialogs/app/dialogaboutapp.cpp
@@ -29,6 +29,7 @@
 #include "dialogaboutapp.h"
 #include "ui_dialogaboutapp.h"
 #include "../../version.h"
+#include <QDate>
 #include <QDesktopServices>
 #include <QMessageBox>
 
diff --git a/src/app/exception/vexception.cpp b/src/app/exception/vexception.cpp
index 0e475809a..e5d63c59c 100644
--- a/src/app/exception/vexception.cpp
+++ b/src/app/exception/vexception.cpp
@@ -30,6 +30,8 @@
 #include <QMessageBox>
 #include <QSpacerItem>
 #include <QGridLayout>
+#include "../options.h"
+#include <QApplication>
 
 //---------------------------------------------------------------------------------------------------------------------
 /**
@@ -80,7 +82,7 @@ void VException::CriticalMessageBox(const QString &situation, QWidget * parent)
     msgBox.setIcon(QMessageBox::Critical);
     QSpacerItem* horizontalSpacer = new QSpacerItem(500, 0, QSizePolicy::Minimum, QSizePolicy::Expanding);
     QGridLayout* layout = static_cast<QGridLayout*>(msgBox.layout());
-    Q_CHECK_PTR(layout);
+    SCASSERT(layout != nullptr);
     layout->addItem(horizontalSpacer, layout->rowCount(), 0, 1, layout->columnCount());
     //Disable Qt::WaitCursor for error message.
 #ifndef QT_NO_CURSOR
diff --git a/src/app/geometry/varc.cpp b/src/app/geometry/varc.cpp
index 1b14a3118..ef7805b7c 100644
--- a/src/app/geometry/varc.cpp
+++ b/src/app/geometry/varc.cpp
@@ -30,6 +30,7 @@
 #include "vspline.h"
 #include "../exception/vexception.h"
 #include <QDebug>
+#include <QtMath>
 
 class QRectF;
 
diff --git a/src/app/geometry/vspline.cpp b/src/app/geometry/vspline.cpp
index 20af4ba4e..1289ad14b 100644
--- a/src/app/geometry/vspline.cpp
+++ b/src/app/geometry/vspline.cpp
@@ -29,6 +29,7 @@
 #include "vspline.h"
 #include <cmath>
 #include <QDebug>
+#include <QtMath>
 
 //---------------------------------------------------------------------------------------------------------------------
 /**
diff --git a/src/app/options.h b/src/app/options.h
index 7bcd53bc1..53cdb7c61 100644
--- a/src/app/options.h
+++ b/src/app/options.h
@@ -33,6 +33,11 @@
 #include <QString>
 #include <QMetaType>
 #include <QtGlobal>
+#include <csignal>
+
+#ifdef Q_OS_WIN32
+#include <Windows.h>
+#endif /*Q_OS_WIN32*/
 
 #define SceneSize 50000
 
@@ -283,4 +288,59 @@ extern const QString cm_Oprt;
 extern const QString mm_Oprt;
 extern const QString in_Oprt;
 
+/*
+ * This macros SCASSERT (for Stop and Continue Assert) will break into the debugger on the line of the assert and allow
+ * you to continue afterwards should you choose to.
+ * idea: Q_ASSERT no longer pauses debugger - http://qt-project.org/forums/viewthread/13148
+ * Usefull links:
+ * 1. What's the difference between __PRETTY_FUNCTION__, __FUNCTION__, __func__? -
+ *    https://stackoverflow.com/questions/4384765/whats-the-difference-between-pretty-function-function-func
+ *
+ * 2. Windows Predefined Macros - http://msdn.microsoft.com/library/b0084kay.aspx
+ *
+ * 3. Windows DebugBreak function - http://msdn.microsoft.com/en-us/library/ms679297%28VS.85%29.aspx
+ *
+ * 4. Continue to debug after failed assertion on Linux? [C/C++] -
+ * https://stackoverflow.com/questions/1721543/continue-to-debug-after-failed-assertion-on-linux-c-c
+ */
+#ifndef QT_NO_DEBUG
+#ifdef Q_OS_WIN32
+#ifdef Q_CC_MSVC
+#define SCASSERT(cond)                                      \
+{                                                           \
+    if (!(cond))                                            \
+    {                                                       \
+        qDebug("ASSERT: %s in %s (%s:%u)",                  \
+            #cond, __FUNCSIG__, __FILE__, __LINE__);        \
+        DebugBreak();                                       \
+    }                                                       \
+}                                                           \
+
+#else
+
+#define SCASSERT(cond)                                      \
+{                                                           \
+    if (!(cond))                                            \
+    {                                                       \
+        qDebug("ASSERT: %s in %s (%s:%u)",                  \
+            #cond, __PRETTY_FUNCTION__, __FILE__, __LINE__);\
+        DebugBreak();                                       \
+    }                                                       \
+}                                                           \
+
+#endif /*Q_CC_MSVC*/
+#else
+#define SCASSERT(cond)                                      \
+{                                                           \
+    if (!(cond))                                            \
+    {                                                       \
+        qDebug("ASSERT: %s in %s (%s:%u)",                  \
+            #cond, __PRETTY_FUNCTION__, __FILE__, __LINE__);\
+        std::raise(SIGTRAP);                                \
+    }                                                       \
+}                                                           \
+
+#endif /* Q_OS_WIN32 */
+#endif /* QT_NO_DEBUG */
+
 #endif // OPTIONS_H
diff --git a/src/app/stable.h b/src/app/stable.h
index 5b75d92fd..22bf1261b 100644
--- a/src/app/stable.h
+++ b/src/app/stable.h
@@ -43,37 +43,40 @@
 #endif
 
 #ifdef QT_CORE_LIB
-#include <QtCore>
+#   include <QtCore>
 #endif
 
 #ifdef QT_GUI_LIB
-#include <QtGui>
+#   include <QtGui>
 #endif
 
 #ifdef QT_WIDGETS_LIB
-#include <QtWidgets>
+#   include <QtWidgets>
 #endif
 
 #ifdef QT_XML_LIB
-#include <QtXml>
+#   include <QtXml>
 #endif
 
 #ifdef QT_SVG_LIB
-#include <QtSvg/QtSvg>
+#   include <QtSvg/QtSvg>
 #endif
 
 #ifdef QT_PRINTSUPPORT_LIB
-#include <QtPrintSupport>
+#   include <QtPrintSupport>
 #endif
 
-#ifdef QT_XMLPATTERNS_LIB
-#include <QtXmlPatterns>
-#endif
+//Build doesn't work, if include this headers on Windows.
+#ifndef Q_OS_WIN
+#   ifdef QT_XMLPATTERNS_LIB
+#       include <QtXmlPatterns>
+#   endif
 
-#ifdef QT_NETWORK_LIB
-#include <QtNetwork>
-#endif
+#   ifdef QT_NETWORK_LIB
+#       include <QtNetwork>
+#   endif
+#endif /*Q_OS_WIN*/
 
-#endif
+#endif /*__cplusplus*/
 
 #endif // STABLE_H
diff --git a/src/app/tools/drawTools/vdrawtool.h b/src/app/tools/drawTools/vdrawtool.h
index e665ba67f..842ca5bc7 100644
--- a/src/app/tools/drawTools/vdrawtool.h
+++ b/src/app/tools/drawTools/vdrawtool.h
@@ -33,6 +33,7 @@
 
 #include <QMenu>
 #include <QGraphicsSceneContextMenuEvent>
+#include <QGraphicsView>
 #include "../../dialogs/tools/dialogtool.h"
 
 /**
@@ -87,8 +88,8 @@ protected:
      */
     void ContextMenu(Tool *tool, QGraphicsSceneContextMenuEvent *event, bool showRemove = true)
     {
-        Q_CHECK_PTR(tool);
-        Q_CHECK_PTR(event);
+        SCASSERT(tool != nullptr);
+        SCASSERT(event != nullptr);
         if (ignoreContextMenuEvent == false)
         {
             QMenu menu;
@@ -144,7 +145,7 @@ protected:
      */
     void ShowItem(Item *item, quint32 id, Qt::GlobalColor color, bool enable)
     {
-        Q_CHECK_PTR(item);
+        SCASSERT(item != nullptr);
         if (id == item->id)
         {
             if (enable == false)
diff --git a/src/app/tools/vtooldetail.cpp b/src/app/tools/vtooldetail.cpp
index c5d2dfa1c..f165a5165 100644
--- a/src/app/tools/vtooldetail.cpp
+++ b/src/app/tools/vtooldetail.cpp
@@ -32,6 +32,7 @@
 #include <QKeyEvent>
 #include <QGraphicsSceneMouseEvent>
 #include <QMenu>
+#include <QGraphicsView>
 
 const QString VToolDetail::TagName          = QStringLiteral("detail");
 const QString VToolDetail::TagNode          = QStringLiteral("node");
@@ -99,9 +100,9 @@ VToolDetail::~VToolDetail()
 //---------------------------------------------------------------------------------------------------------------------
 void VToolDetail::setDialog()
 {
-    Q_CHECK_PTR(dialog);
+    SCASSERT(dialog != nullptr);
     DialogDetail *dialogTool = qobject_cast<DialogDetail*>(dialog);
-    Q_CHECK_PTR(dialogTool);
+    SCASSERT(dialogTool != nullptr);
     VDetail detail = VAbstractTool::data.GetDetail(id);
     dialogTool->setDetails(detail);
 }
@@ -109,9 +110,9 @@ void VToolDetail::setDialog()
 //---------------------------------------------------------------------------------------------------------------------
 void VToolDetail::Create(DialogTool *dialog, VMainGraphicsScene *scene, VPattern *doc, VContainer *data)
 {
-    Q_CHECK_PTR(dialog);
+    SCASSERT(dialog != nullptr);
     DialogDetail *dialogTool = qobject_cast<DialogDetail*>(dialog);
-    Q_CHECK_PTR(dialogTool);
+    SCASSERT(dialogTool != nullptr);
     VDetail detail = dialogTool->getDetails();
     VDetail det;
     for (ptrdiff_t i = 0; i< detail.CountNode(); ++i)
@@ -202,9 +203,9 @@ void VToolDetail::FullUpdateFromGui(int result)
         QDomElement domElement = doc->elementById(QString().setNum(id));
         if (domElement.isElement())
         {
-            Q_CHECK_PTR(dialog);
+            SCASSERT(dialog != nullptr);
             DialogDetail *dialogTool = qobject_cast<DialogDetail*>(dialog);
-            Q_CHECK_PTR(dialogTool);
+            SCASSERT(dialogTool != nullptr);
             VDetail det = dialogTool->getDetails();
             doc->SetAttribute(domElement, AttrName, det.getName());
             doc->SetAttribute(domElement, AttrSupplement, QString().setNum(det.getSeamAllowance()));
@@ -433,9 +434,9 @@ template <typename Tool>
 void VToolDetail::InitTool(VMainGraphicsScene *scene, const VNodeDetail &node)
 {
     QHash<quint32, VDataTool*>* tools = doc->getTools();
-    Q_CHECK_PTR(tools);
+    SCASSERT(tools != nullptr);
     Tool *tool = qobject_cast<Tool*>(tools->value(node.getId()));
-    Q_CHECK_PTR(tool);
+    SCASSERT(tool != nullptr);
     connect(tool, &Tool::ChoosedTool, scene, &VMainGraphicsScene::ChoosedItem);
     tool->setParentItem(this);
 }
diff --git a/src/app/widgets/vapplication.cpp b/src/app/widgets/vapplication.cpp
index 36a246d13..8eadb791d 100644
--- a/src/app/widgets/vapplication.cpp
+++ b/src/app/widgets/vapplication.cpp
@@ -39,6 +39,7 @@
 #include <QSettings>
 
 #include <container/calculator.h>
+#include <QtMath>
 
 const qreal VApplication::PrintDPI = 96.0;
 
diff --git a/src/app/widgets/vsimplespline.cpp b/src/app/widgets/vsimplespline.cpp
index 9f30b30f5..bc53d4e22 100644
--- a/src/app/widgets/vsimplespline.cpp
+++ b/src/app/widgets/vsimplespline.cpp
@@ -28,6 +28,7 @@
 
 #include "vsimplespline.h"
 #include "../widgets/vapplication.h"
+#include <QGraphicsSceneMouseEvent>
 #include <QPen>
 
 //---------------------------------------------------------------------------------------------------------------------
diff --git a/src/libs/qmuparser/qmuparserbase.cpp b/src/libs/qmuparser/qmuparserbase.cpp
index 6354c8b03..cbfd20c94 100644
--- a/src/libs/qmuparser/qmuparserbase.cpp
+++ b/src/libs/qmuparser/qmuparserbase.cpp
@@ -23,6 +23,7 @@
 #include "qmuparserbase.h"
 #include <QTextStream>
 #include <QtMath>
+#include <QDebug>
 #ifdef QMUP_USE_OPENMP
     #include <omp.h>
 #endif
@@ -2086,4 +2087,17 @@ void QmuParserBase::Eval(qreal *results, int nBulkSize) const
     }
     #endif
 }
+
+//---------------------------------------------------------------------------------------------------------------------
+/**
+ * @brief Set a function that can create variable pointer for unknown expression variables.
+ * @param a_pFactory A pointer to the variable factory.
+ * @param pUserData A user defined context pointer.
+ */
+// cppcheck-suppress unusedFunction
+void qmu::QmuParserBase::SetVarFactory(facfun_type a_pFactory, void *pUserData)
+{
+    m_pTokenReader->SetVarCreator(a_pFactory, pUserData);
+}
+
 } // namespace qmu
diff --git a/src/libs/qmuparser/qmuparserbase.h b/src/libs/qmuparser/qmuparserbase.h
index b82954f9a..c7727426b 100644
--- a/src/libs/qmuparser/qmuparserbase.h
+++ b/src/libs/qmuparser/qmuparserbase.h
@@ -284,18 +284,6 @@ inline void QmuParserBase::AddValIdent(identfun_type a_pCallback)
     m_pTokenReader->AddValIdent(a_pCallback);
 }
 
-//---------------------------------------------------------------------------------------------------------------------
-/**
- * @brief Set a function that can create variable pointer for unknown expression variables.
- * @param a_pFactory A pointer to the variable factory.
- * @param pUserData A user defined context pointer.
- */
-// cppcheck-suppress unusedFunction
-inline void QmuParserBase::SetVarFactory(facfun_type a_pFactory, void *pUserData)
-{
-    m_pTokenReader->SetVarCreator(a_pFactory, pUserData);
-}
-
 //---------------------------------------------------------------------------------------------------------------------
 /**
  * @brief Get the default symbols used for the built in operators.
@@ -306,11 +294,13 @@ inline const QStringList &QmuParserBase::GetOprtDef()
     return c_DefaultOprt;
 }
 
+//---------------------------------------------------------------------------------------------------------------------
 inline QMap<int, QString> QmuParserBase::GetTokens() const
 {
     return m_Tokens;
 }
 
+//---------------------------------------------------------------------------------------------------------------------
 inline QMap<int, QString> QmuParserBase::GetNumbers() const
 {
     return m_Numbers;
diff --git a/src/libs/qmuparser/qmuparserbytecode.cpp b/src/libs/qmuparser/qmuparserbytecode.cpp
index e4f27746e..3634612eb 100644
--- a/src/libs/qmuparser/qmuparserbytecode.cpp
+++ b/src/libs/qmuparser/qmuparserbytecode.cpp
@@ -22,11 +22,10 @@
 
 #include "qmuparserbytecode.h"
 
-#include <cassert>
-#include <string>
-#include <stack>
-#include <iostream>
+#include <QStack>
 #include <QString>
+#include <QtMath>
+#include <QDebug>
 
 #include "qmuparserdef.h"
 #include "qmuparsererror.h"
diff --git a/src/libs/qmuparser/qmuparsererror.h b/src/libs/qmuparser/qmuparsererror.h
index 7b1d596c0..49b16e972 100644
--- a/src/libs/qmuparser/qmuparsererror.h
+++ b/src/libs/qmuparser/qmuparsererror.h
@@ -26,6 +26,7 @@
 #include "qmuparser_global.h"
 #include <sstream>
 #include <QException>
+#include <QVector>
 
 #include "qmuparserdef.h"
 
diff --git a/src/libs/qmuparser/qmuparsertokenreader.cpp b/src/libs/qmuparser/qmuparsertokenreader.cpp
index a152d5d75..bbcf768bf 100644
--- a/src/libs/qmuparser/qmuparsertokenreader.cpp
+++ b/src/libs/qmuparser/qmuparsertokenreader.cpp
@@ -24,6 +24,7 @@
 #include "qmuparserbase.h"
 
 #include <QStringList>
+#include <QDebug>
 
 /**
  * @file