diff --git a/Versions/build.txt b/Versions/build.txt
index 1e8b31496..d00491fd7 100644
--- a/Versions/build.txt
+++ b/Versions/build.txt
@@ -1 +1 @@
-6
+1
diff --git a/Versions/day.txt b/Versions/day.txt
index a1e0432c9..5478c714f 100644
--- a/Versions/day.txt
+++ b/Versions/day.txt
@@ -1 +1 @@
-312
+313
diff --git a/minipath/src/Config.cpp b/minipath/src/Config.cpp
index f193bf423..9008841e2 100644
--- a/minipath/src/Config.cpp
+++ b/minipath/src/Config.cpp
@@ -75,7 +75,7 @@ constexpr bool SI_Success(const SI_Error rc) noexcept {
 // of complete file to preserve integrety of any transaction
 // ----------------------------------------------------------------------------
 
-HANDLE AcquireFileLock(LPCWSTR lpIniFilePath, OVERLAPPED& rOvrLpd)
+HANDLE AcquireWriteFileLock(LPCWSTR lpIniFilePath, OVERLAPPED& rOvrLpd)
 {
   HANDLE hFile = CreateFile(lpIniFilePath, 
     GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
@@ -89,6 +89,20 @@ HANDLE AcquireFileLock(LPCWSTR lpIniFilePath, OVERLAPPED& rOvrLpd)
 
 // ----------------------------------------------------------------------------
 
+HANDLE AcquireReadFileLock(LPCWSTR lpIniFilePath, OVERLAPPED& rOvrLpd)
+{
+  HANDLE hFile = CreateFile(lpIniFilePath,
+    GENERIC_READ, FILE_SHARE_READ,
+    nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
+
+  DWORD const flags = LOCKFILE_EXCLUSIVE_LOCK;
+  bool const bLocked = LockFileEx(hFile, flags, 0, MAXDWORD, 0, &rOvrLpd);
+
+  return (bLocked ? hFile : INVALID_HANDLE_VALUE);
+}
+
+// ----------------------------------------------------------------------------
+
 bool ReleaseFileLock(HANDLE hFile, OVERLAPPED& rOvrLpd)
 {
   bool bUnLocked = true;
@@ -116,7 +130,7 @@ extern "C" BOOL LoadIniFile(LPCWSTR lpIniFilePath)
   s_INI.SetSpaces(s_bSetSpaces);
   s_INI.SetMultiLine(s_bUseMultiLine);
 
-  s_INI_Hndl = AcquireFileLock(lpIniFilePath, s_OvrLpd);
+  s_INI_Hndl = AcquireReadFileLock(lpIniFilePath, s_OvrLpd);
   if (s_INI_Hndl == INVALID_HANDLE_VALUE) {
     return false;
   }
@@ -316,7 +330,7 @@ extern "C" size_t IniFileGetString(LPCWSTR lpFilePath, LPCWSTR lpSectionName, LP
   CSimpleIni Ini(s_bIsUTF8, s_bUseMultiKey, s_bUseMultiLine);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireReadFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     StringCchCopyW(lpReturnedString, cchReturnedString, lpDefault);
     return (size_t)lstrlen(lpReturnedString);
@@ -344,7 +358,7 @@ extern "C" BOOL IniFileSetString(LPCWSTR lpFilePath, LPCWSTR lpSectionName, LPCW
   Ini.SetSpaces(s_bSetSpaces);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireWriteFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     return false;
   }
@@ -370,7 +384,7 @@ extern "C" int IniFileGetInt(LPCWSTR lpFilePath, LPCWSTR lpSectionName, LPCWSTR
   CSimpleIni Ini(s_bIsUTF8, s_bUseMultiKey, s_bUseMultiLine);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireReadFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     return iDefault;
   }
@@ -396,7 +410,7 @@ extern "C" BOOL IniFileSetInt(LPCWSTR lpFilePath, LPCWSTR lpSectionName, LPCWSTR
   Ini.SetSpaces(s_bSetSpaces);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireWriteFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     return false;
   }
@@ -419,7 +433,7 @@ extern "C" BOOL IniFileGetBool(LPCWSTR lpFilePath, LPCWSTR lpSectionName, LPCWST
   CSimpleIni Ini(s_bIsUTF8, s_bUseMultiKey, s_bUseMultiLine);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireReadFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     return bDefault;
   }
@@ -445,7 +459,7 @@ extern "C" BOOL IniFileSetBool(LPCWSTR lpFilePath, LPCWSTR lpSectionName, LPCWST
   Ini.SetSpaces(s_bSetSpaces);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireWriteFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     return false;
   }
@@ -469,7 +483,7 @@ extern "C" BOOL IniFileDelete(LPCWSTR lpFilePath, LPCWSTR lpSectionName, LPCWSTR
   Ini.SetSpaces(s_bSetSpaces);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireWriteFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     return false;
   }
@@ -492,7 +506,7 @@ extern "C" BOOL IniFileIterateSection(LPCWSTR lpFilePath, LPCWSTR lpSectionName,
   CSimpleIni Ini(s_bIsUTF8, s_bUseMultiKey, s_bUseMultiLine);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireReadFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     return false;
   }
@@ -585,14 +599,15 @@ int CreateIniFile()
       }
     }
     else {
-      OVERLAPPED ovrLpd = { 0 };
-      HANDLE hFile = AcquireFileLock(g_wchIniFile, ovrLpd);
+      HANDLE hFile = CreateFile(g_wchIniFile,
+        GENERIC_READ, FILE_SHARE_READ,
+        nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
       if (hFile == INVALID_HANDLE_VALUE) {
         return result;
       }
       DWORD dwFSHigh = 0UL;
       dwFileSize = GetFileSize(hFile, &dwFSHigh);
-      ReleaseFileLock(hFile, ovrLpd);
+      CloseHandle(hFile);
     }
 
     if ((dwFileSize == 0) && (dwFileSize != INVALID_FILE_SIZE)) {
diff --git a/res/Notepad3.exe.manifest.conf b/res/Notepad3.exe.manifest.conf
index 40d30beb7..8dd115450 100644
--- a/res/Notepad3.exe.manifest.conf
+++ b/res/Notepad3.exe.manifest.conf
@@ -3,7 +3,7 @@
   <assemblyIdentity
     name="Notepad3"
     processorArchitecture="*"
-    version="5.20.312.6"
+    version="5.20.313.1"
     type="win32"
   />
   <description>Notepad3 RC3</description>
diff --git a/src/Config/Config.cpp b/src/Config/Config.cpp
index 7b64ae485..3672a2c68 100644
--- a/src/Config/Config.cpp
+++ b/src/Config/Config.cpp
@@ -89,7 +89,7 @@ constexpr bool SI_Success(const SI_Error rc) noexcept {
 // of complete file to preserve integrety of any transaction
 // ----------------------------------------------------------------------------
 
-HANDLE AcquireFileLock(LPCWSTR lpIniFilePath, OVERLAPPED& rOvrLpd)
+HANDLE AcquireWriteFileLock(LPCWSTR lpIniFilePath, OVERLAPPED& rOvrLpd)
 {
   HANDLE hFile = CreateFile(lpIniFilePath, 
     GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
@@ -103,6 +103,20 @@ HANDLE AcquireFileLock(LPCWSTR lpIniFilePath, OVERLAPPED& rOvrLpd)
 
 // ----------------------------------------------------------------------------
 
+HANDLE AcquireReadFileLock(LPCWSTR lpIniFilePath, OVERLAPPED& rOvrLpd)
+{
+  HANDLE hFile = CreateFile(lpIniFilePath,
+    GENERIC_READ, FILE_SHARE_READ,
+    nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
+
+  DWORD const flags = LOCKFILE_EXCLUSIVE_LOCK;
+  bool const bLocked = LockFileEx(hFile, flags, 0, MAXDWORD, 0, &rOvrLpd);
+
+  return (bLocked ? hFile : INVALID_HANDLE_VALUE);
+}
+
+// ----------------------------------------------------------------------------
+
 bool ReleaseFileLock(HANDLE hFile, OVERLAPPED& rOvrLpd)
 {
   bool bUnLocked = true;
@@ -130,7 +144,7 @@ extern "C" bool LoadIniFile(LPCWSTR lpIniFilePath)
   s_INI.SetSpaces(s_bSetSpaces);
   s_INI.SetMultiLine(s_bUseMultiLine);
 
-  s_INI_Hndl = AcquireFileLock(lpIniFilePath, s_OvrLpd);
+  s_INI_Hndl = AcquireReadFileLock(lpIniFilePath, s_OvrLpd);
   if (s_INI_Hndl == INVALID_HANDLE_VALUE) {
     return false;
   }
@@ -330,7 +344,7 @@ extern "C" size_t IniFileGetString(LPCWSTR lpFilePath, LPCWSTR lpSectionName, LP
   CSimpleIni Ini(s_bIsUTF8, s_bUseMultiKey, s_bUseMultiLine);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireReadFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     StringCchCopyW(lpReturnedString, cchReturnedString, lpDefault);
     return StringCchLenW(lpReturnedString, cchReturnedString);
@@ -358,7 +372,7 @@ extern "C" bool IniFileSetString(LPCWSTR lpFilePath, LPCWSTR lpSectionName, LPCW
   Ini.SetSpaces(s_bSetSpaces);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireWriteFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     return false;
   }
@@ -384,7 +398,7 @@ extern "C" int IniFileGetInt(LPCWSTR lpFilePath, LPCWSTR lpSectionName, LPCWSTR
   CSimpleIni Ini(s_bIsUTF8, s_bUseMultiKey, s_bUseMultiLine);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireReadFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     return iDefault;
   }
@@ -410,7 +424,7 @@ extern "C" bool IniFileSetInt(LPCWSTR lpFilePath, LPCWSTR lpSectionName, LPCWSTR
   Ini.SetSpaces(s_bSetSpaces);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireWriteFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     return false;
   }
@@ -433,7 +447,7 @@ extern "C" bool IniFileGetBool(LPCWSTR lpFilePath, LPCWSTR lpSectionName, LPCWST
   CSimpleIni Ini(s_bIsUTF8, s_bUseMultiKey, s_bUseMultiLine);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireReadFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     return bDefault;
   }
@@ -459,7 +473,7 @@ extern "C" bool IniFileSetBool(LPCWSTR lpFilePath, LPCWSTR lpSectionName, LPCWST
   Ini.SetSpaces(s_bSetSpaces);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireWriteFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     return false;
   }
@@ -483,7 +497,7 @@ extern "C" bool IniFileDelete(LPCWSTR lpFilePath, LPCWSTR lpSectionName, LPCWSTR
   Ini.SetSpaces(s_bSetSpaces);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireWriteFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     return false;
   }
@@ -506,7 +520,7 @@ extern "C" bool IniFileIterateSection(LPCWSTR lpFilePath, LPCWSTR lpSectionName,
   CSimpleIni Ini(s_bIsUTF8, s_bUseMultiKey, s_bUseMultiLine);
 
   OVERLAPPED ovrLpd = { 0 };
-  HANDLE hFile = AcquireFileLock(lpFilePath, ovrLpd);
+  HANDLE hFile = AcquireReadFileLock(lpFilePath, ovrLpd);
   if (hFile == INVALID_HANDLE_VALUE) {
     return false;
   }
@@ -790,16 +804,17 @@ extern "C" bool CreateIniFile()
       }
     }
     else {
-      OVERLAPPED ovrLpd = { 0 };
-      HANDLE hFile = AcquireFileLock(Globals.IniFile, ovrLpd);
+      HANDLE hFile = CreateFile(Globals.IniFile,
+        GENERIC_READ, FILE_SHARE_READ,
+        nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
       if (hFile == INVALID_HANDLE_VALUE) {
         Globals.dwLastError = GetLastError();
-        MsgBoxLastError(L"Accessing Settings-File failed!", Globals.dwLastError);
+        MsgBoxLastError(L"Read Access to Settings-File failed!", Globals.dwLastError);
         return result;
       }
       DWORD dwFSHigh = 0UL;
       dwFileSize = GetFileSize(hFile, &dwFSHigh);
-      ReleaseFileLock(hFile, ovrLpd);
+      CloseHandle(hFile);
     }
 
     if ((dwFileSize == 0) && (dwFileSize != INVALID_FILE_SIZE)) {
diff --git a/src/VersionEx.h b/src/VersionEx.h
index 728ce485a..10399468a 100644
--- a/src/VersionEx.h
+++ b/src/VersionEx.h
@@ -8,8 +8,8 @@
 #define SAPPNAME "Notepad3"
 #define VERSION_MAJOR 5
 #define VERSION_MINOR 20
-#define VERSION_REV 312
-#define VERSION_BUILD 6
+#define VERSION_REV 313
+#define VERSION_BUILD 1
 #define SCINTILLA_VER 432
 #define ONIGURUMA_REGEX_VER 6.9.4
 #define UCHARDET_VER 2018.09.27