diff --git a/PowerEditor/src/Notepad_plus.cpp b/PowerEditor/src/Notepad_plus.cpp
index def15a60..7ff366f0 100644
--- a/PowerEditor/src/Notepad_plus.cpp
+++ b/PowerEditor/src/Notepad_plus.cpp
@@ -4989,7 +4989,9 @@ void Notepad_plus::getCurrentOpenedFiles(Session & session, bool includUntitledD
 
 			generic_string	languageName = getLangFromMenu(buf);
 			const TCHAR *langName = languageName.c_str();
-			sessionFileInfo sfi(buf->getFullPathName(), langName, buf->getEncoding(), buf->getPosition(editView), buf->getBackupFileName().c_str(), buf->getLastModifiedTimestamp(), buf->getMapPosition());
+			sessionFileInfo sfi(buf->getFullPathName(), langName, buf->getEncoding(), buf->getUserReadOnly(), buf->getPosition(editView), buf->getBackupFileName().c_str(), buf->getLastModifiedTimestamp(), buf->getMapPosition());
+
+			sfi._isMonitoring = buf->isMonitoringOn();
 
 			_invisibleEditView.execute(SCI_SETDOCPOINTER, 0, buf->getDocument());
 			size_t maxLine = static_cast<size_t>(_invisibleEditView.execute(SCI_GETLINECOUNT));
diff --git a/PowerEditor/src/NppIO.cpp b/PowerEditor/src/NppIO.cpp
index b6f695d5..6f18b830 100644
--- a/PowerEditor/src/NppIO.cpp
+++ b/PowerEditor/src/NppIO.cpp
@@ -1718,6 +1718,8 @@ bool Notepad_plus::loadSession(Session & session, bool isSnapshotMode)
 			if (session._mainViewFiles[i]._encoding != -1)
 				buf->setEncoding(session._mainViewFiles[i]._encoding);
 
+			buf->setUserReadOnly(session._mainViewFiles[i]._isUserReadOnly);
+
 			if (isSnapshotMode && session._mainViewFiles[i]._backupFilePath != TEXT("") && PathFileExists(session._mainViewFiles[i]._backupFilePath.c_str()))
 				buf->setDirty(true);
 
@@ -1831,6 +1833,7 @@ bool Notepad_plus::loadSession(Session & session, bool isSnapshotMode)
 			}
 			buf->setLangType(typeToSet, pLn);
 			buf->setEncoding(session._subViewFiles[k]._encoding);
+			buf->setUserReadOnly(session._mainViewFiles[k]._isUserReadOnly);
 
 			if (isSnapshotMode && session._subViewFiles[k]._backupFilePath != TEXT("") && PathFileExists(session._subViewFiles[k]._backupFilePath.c_str()))
 				buf->setDirty(true);
diff --git a/PowerEditor/src/Parameters.cpp b/PowerEditor/src/Parameters.cpp
index 8eef120b..99abc115 100644
--- a/PowerEditor/src/Parameters.cpp
+++ b/PowerEditor/src/Parameters.cpp
@@ -2122,7 +2122,12 @@ bool NppParameters::getSessionFromXmlTree(TiXmlDocument *pSessionDoc, Session *p
 					(childNode->ToElement())->Attribute(TEXT("originalFileLastModifTimestamp"), reinterpret_cast<int32_t*>(&fileModifiedTimestamp.dwLowDateTime));
 					(childNode->ToElement())->Attribute(TEXT("originalFileLastModifTimestampHigh"), reinterpret_cast<int32_t*>(&fileModifiedTimestamp.dwHighDateTime));
 
-					sessionFileInfo sfi(fileName, langName, encStr?encoding:-1, position, backupFilePath, fileModifiedTimestamp, mapPosition);
+					bool isUserReadOnly = false;
+					const TCHAR *boolStrReadOnly = (childNode->ToElement())->Attribute(TEXT("userReadOnly"));
+					if (boolStrReadOnly)
+						isUserReadOnly = _wcsicmp(TEXT("yes"), boolStrReadOnly) == 0;
+
+					sessionFileInfo sfi(fileName, langName, encStr ? encoding : -1, isUserReadOnly, position, backupFilePath, fileModifiedTimestamp, mapPosition);
 
 					for (TiXmlNode *markNode = childNode->FirstChildElement(TEXT("Mark"));
 						markNode ;
@@ -3137,6 +3142,7 @@ void NppParameters::writeSession(const Session & session, const TCHAR *fileName)
 				(fileNameNode->ToElement())->SetAttribute(TEXT("selMode"), viewSessionFiles[i]._selMode);
 				(fileNameNode->ToElement())->SetAttribute(TEXT("lang"), viewSessionFiles[i]._langName.c_str());
 				(fileNameNode->ToElement())->SetAttribute(TEXT("encoding"), viewSessionFiles[i]._encoding);
+				(fileNameNode->ToElement())->SetAttribute(TEXT("userReadOnly"), (viewSessionFiles[i]._isUserReadOnly && !viewSessionFiles[i]._isMonitoring) ? TEXT("yes") : TEXT("no"));
 				(fileNameNode->ToElement())->SetAttribute(TEXT("filename"), viewSessionFiles[i]._fileName.c_str());
 				(fileNameNode->ToElement())->SetAttribute(TEXT("backupFilePath"), viewSessionFiles[i]._backupFilePath.c_str());
 				(fileNameNode->ToElement())->SetAttribute(TEXT("originalFileLastModifTimestamp"), static_cast<int32_t>(viewSessionFiles[i]._originalFileLastModifTimestamp.dwLowDateTime));
diff --git a/PowerEditor/src/Parameters.h b/PowerEditor/src/Parameters.h
index 5513cbd9..fb879798 100644
--- a/PowerEditor/src/Parameters.h
+++ b/PowerEditor/src/Parameters.h
@@ -162,8 +162,8 @@ private:
 
 struct sessionFileInfo : public Position
 {
-	sessionFileInfo(const TCHAR *fn, const TCHAR *ln, int encoding, const Position& pos, const TCHAR *backupFilePath, FILETIME originalFileLastModifTimestamp, const MapPosition & mapPos) :
-		_encoding(encoding), Position(pos), _originalFileLastModifTimestamp(originalFileLastModifTimestamp), _mapPos(mapPos)
+	sessionFileInfo(const TCHAR *fn, const TCHAR *ln, int encoding, bool userReadOnly, const Position& pos, const TCHAR *backupFilePath, FILETIME originalFileLastModifTimestamp, const MapPosition & mapPos) :
+		_isUserReadOnly(userReadOnly), _encoding(encoding), Position(pos), _originalFileLastModifTimestamp(originalFileLastModifTimestamp), _mapPos(mapPos)
 	{
 		if (fn) _fileName = fn;
 		if (ln)	_langName = ln;
@@ -177,6 +177,8 @@ struct sessionFileInfo : public Position
 	std::vector<size_t> _marks;
 	std::vector<size_t> _foldStates;
 	int	_encoding = -1;
+	bool _isUserReadOnly = false;
+	bool _isMonitoring = false;
 
 	generic_string _backupFilePath;
 	FILETIME _originalFileLastModifTimestamp = {};