diff --git a/PowerEditor/src/MISC/Common/Common.cpp b/PowerEditor/src/MISC/Common/Common.cpp
index 6cc5913c9..61cccc793 100644
--- a/PowerEditor/src/MISC/Common/Common.cpp
+++ b/PowerEditor/src/MISC/Common/Common.cpp
@@ -557,7 +557,7 @@ generic_string PathRemoveFileSpec(generic_string & path)
 	return path;
 }
 
-generic_string PathAppend(generic_string &strDest, const generic_string str2append)
+generic_string PathAppend(generic_string &strDest, const generic_string & str2append)
 {
 	if (strDest == TEXT("") && str2append == TEXT("")) // "" + ""
 	{
diff --git a/PowerEditor/src/MISC/Common/Common.h b/PowerEditor/src/MISC/Common/Common.h
index c33ca0480..16154dd98 100644
--- a/PowerEditor/src/MISC/Common/Common.h
+++ b/PowerEditor/src/MISC/Common/Common.h
@@ -177,7 +177,7 @@ private:
 #endif
 
 generic_string PathRemoveFileSpec(generic_string & path);
-generic_string PathAppend(generic_string &strDest, const generic_string str2append);
+generic_string PathAppend(generic_string &strDest, const generic_string & str2append);
 COLORREF getCtrlBkColor(HWND hWnd);
 
 #endif //M30_IDE_COMMUN_H
diff --git a/PowerEditor/src/NppCommands.cpp b/PowerEditor/src/NppCommands.cpp
index dc915f697..3aaccdc5c 100644
--- a/PowerEditor/src/NppCommands.cpp
+++ b/PowerEditor/src/NppCommands.cpp
@@ -40,7 +40,7 @@ void Notepad_plus::macroPlayback(Macro macro)
 {
 	_pEditView->execute(SCI_BEGINUNDOACTION);
 
-	for (Macro::iterator step = macro.begin(); step != macro.end(); step++)
+	for (Macro::iterator step = macro.begin(); step != macro.end(); ++step)
 	{
 		if (step->isPlayable())
 			step->PlayBack(this->_pPublicInterface, _pEditView);
diff --git a/PowerEditor/src/ScitillaComponent/FindReplaceDlg.cpp b/PowerEditor/src/ScitillaComponent/FindReplaceDlg.cpp
index d3e1f79b8..7fb9a66db 100644
--- a/PowerEditor/src/ScitillaComponent/FindReplaceDlg.cpp
+++ b/PowerEditor/src/ScitillaComponent/FindReplaceDlg.cpp
@@ -331,7 +331,7 @@ void FindReplaceDlg::fillComboHistory(int id, const vector<generic_string> & str
 	bool isUnicode = false;
 	HWND hCombo = ::GetDlgItem(_hSelf, id);
 
-	for (vector<generic_string>::const_reverse_iterator i = strings.rbegin() ; i != strings.rend(); i++)
+	for (vector<generic_string>::const_reverse_iterator i = strings.rbegin() ; i != strings.rend(); ++i)
 	{
 		addText2Combo(i->c_str(), hCombo, isUnicode);
 	}
diff --git a/PowerEditor/src/WinControls/ColourPicker/WordStyleDlg.cpp b/PowerEditor/src/WinControls/ColourPicker/WordStyleDlg.cpp
index 6517bdf43..c5ce02a9b 100644
--- a/PowerEditor/src/WinControls/ColourPicker/WordStyleDlg.cpp
+++ b/PowerEditor/src/WinControls/ColourPicker/WordStyleDlg.cpp
@@ -711,7 +711,7 @@ void WordStyleDlg::setVisualFromStyleList()
     //--Warning text
     //bool showWarning = ((_currentLexerIndex == 0) && (style._styleID == STYLE_DEFAULT));//?SW_SHOW:SW_HIDE;
 
-	COLORREF c = c = RGB(0x00, 0x00, 0xFF);
+	COLORREF c = RGB(0x00, 0x00, 0xFF);
 	TCHAR str[256];
 
 	str[0] = '\0';
diff --git a/PowerEditor/src/WinControls/ProjectPanel/TreeView.cpp b/PowerEditor/src/WinControls/ProjectPanel/TreeView.cpp
index 4bf1cac8f..aaeea3489 100644
--- a/PowerEditor/src/WinControls/ProjectPanel/TreeView.cpp
+++ b/PowerEditor/src/WinControls/ProjectPanel/TreeView.cpp
@@ -40,7 +40,7 @@ void TreeView::init(HINSTANCE hInst, HWND parent, int treeViewID)
                             WC_TREEVIEW,
                             TEXT("Tree View"),
                             WS_CHILD | WS_BORDER | WS_HSCROLL | WS_TABSTOP | TVS_LINESATROOT | TVS_HASLINES |
-							TVS_HASBUTTONS | TVS_HASBUTTONS | TVS_SHOWSELALWAYS | TVS_EDITLABELS | TVS_INFOTIP, 
+							TVS_HASBUTTONS | TVS_SHOWSELALWAYS | TVS_EDITLABELS | TVS_INFOTIP, 
                             0,  0,  0, 0,
                             _hParent, 
                             NULL, 
diff --git a/PowerEditor/src/WinControls/StaticDialog/StaticDialog.cpp b/PowerEditor/src/WinControls/StaticDialog/StaticDialog.cpp
index 14932e978..8683c65c0 100644
--- a/PowerEditor/src/WinControls/StaticDialog/StaticDialog.cpp
+++ b/PowerEditor/src/WinControls/StaticDialog/StaticDialog.cpp
@@ -112,7 +112,7 @@ void StaticDialog::create(int dialogID, bool isRTL, bool msgDestParent)
 	{
 		DWORD err = ::GetLastError();
 		char errMsg[256];
-		sprintf(errMsg, "CreateDialogParam() return NULL.\rGetLastError() == %d", err);
+		sprintf(errMsg, "CreateDialogParam() return NULL.\rGetLastError() == %u", err);
 		::MessageBoxA(NULL, errMsg, "In StaticDialog::create()", MB_OK);
 		return;
 	}