diff --git a/src/Config/Config.cpp b/src/Config/Config.cpp
index 14e28c68c..5dabc5a42 100644
--- a/src/Config/Config.cpp
+++ b/src/Config/Config.cpp
@@ -91,13 +91,22 @@ constexpr bool SI_Success(const SI_Error rc) noexcept {
 
 HANDLE AcquireWriteFileLock(LPCWSTR lpIniFilePath, OVERLAPPED& rOvrLpd)
 {
-  HANDLE hFile = CreateFile(lpIniFilePath, 
-    GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
+  bool bLocked = false;
+
+  HANDLE hFile = CreateFile(lpIniFilePath,
+    GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
     nullptr, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
 
-  DWORD const flags = LOCKFILE_EXCLUSIVE_LOCK;
-  bool const bLocked = LockFileEx(hFile, flags, 0, MAXDWORD, 0, &rOvrLpd);
-
+  if (hFile != INVALID_HANDLE_VALUE) {
+    DWORD const flags = LOCKFILE_EXCLUSIVE_LOCK;
+    bLocked = LockFileEx(hFile, flags, 0, MAXDWORD, 0, &rOvrLpd);
+    if (!bLocked) {
+      MsgBoxLastError(L"AcquireWriteFileLock(): NO LOCK ACQUIRED!", 0); // @@@§§§
+    }
+  }
+  else {
+    MsgBoxLastError(L"AcquireWriteFileLock(): INVALID_HANDLE_VALUE!", 0); // @@@§§§
+  }
   return (bLocked ? hFile : INVALID_HANDLE_VALUE);
 }
 
@@ -105,13 +114,22 @@ HANDLE AcquireWriteFileLock(LPCWSTR lpIniFilePath, OVERLAPPED& rOvrLpd)
 
 HANDLE AcquireReadFileLock(LPCWSTR lpIniFilePath, OVERLAPPED& rOvrLpd)
 {
+  bool bLocked = false;
+
   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);
-
+  if (hFile != INVALID_HANDLE_VALUE) {
+    DWORD const flags = LOCKFILE_EXCLUSIVE_LOCK;
+    bLocked = LockFileEx(hFile, flags, 0, MAXDWORD, 0, &rOvrLpd);
+    if (!bLocked) {
+      MsgBoxLastError(L"AcquireReadFileLock(): NO LOCK ACQUIRED!", 0); // @@@§§§
+    }
+  }
+  else {
+    MsgBoxLastError(L"AcquireReadFileLock(): INVALID_HANDLE_VALUE", 0); // @@@§§§
+  }
   return (bLocked ? hFile : INVALID_HANDLE_VALUE);
 }
 
@@ -816,6 +834,7 @@ extern "C" bool CreateIniFile()
         CloseHandle(hFile);
       }
       else {
+        MsgBoxLastError(L"CreateIniFile(): INVALID_HANDLE_VALUE!", 0); // @@@§§§
         dwFileSize = INVALID_FILE_SIZE;
       }
     }
diff --git a/src/Config/SimpleIni.h b/src/Config/SimpleIni.h
index 4ec554497..57c16b68b 100644
--- a/src/Config/SimpleIni.h
+++ b/src/Config/SimpleIni.h
@@ -1434,6 +1434,7 @@ CSimpleIniTempl<SI_CHAR, SI_STRLESS, SI_CONVERTER>::LoadFile(
     nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
 
   if (hFile == INVALID_HANDLE_VALUE) {
+    MsgBoxLastError(L"CSimpleIni::LoadFile(): INVALID_HANDLE_VALUE!", 0); // @@@§§§
     return SI_Error::SI_FILE;
   }
 
@@ -2629,10 +2630,11 @@ CSimpleIniTempl<SI_CHAR, SI_STRLESS, SI_CONVERTER>::SaveFile(
 ) const
 {
   HANDLE hFile = CreateFile(a_pwszFile,
-    FILE_GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
+    GENERIC_WRITE, FILE_SHARE_READ | FILE_SHARE_WRITE,
     nullptr, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
 
   if (hFile == INVALID_HANDLE_VALUE) {
+    MsgBoxLastError(L"CSimpleIni::SaveFile(): INVALID_HANDLE_VALUE!", 0); // @@@§§§
     return SI_Error::SI_FILE;
   }
 
diff --git a/src/Notepad3.c b/src/Notepad3.c
index b1c6da249..400aa4213 100644
--- a/src/Notepad3.c
+++ b/src/Notepad3.c
@@ -9404,7 +9404,8 @@ bool FileLoad(bool bDontSave, bool bNew, bool bReload,
     }
     if (bCreateFile) {
       HANDLE hFile = CreateFile(szFileName,
-                      GENERIC_WRITE,FILE_SHARE_READ|FILE_SHARE_WRITE,
+                      GENERIC_READ | GENERIC_WRITE,
+                      FILE_SHARE_READ|FILE_SHARE_WRITE,
                       NULL,CREATE_NEW,FILE_ATTRIBUTE_NORMAL,NULL);
       Globals.dwLastError = GetLastError();
       fSuccess = (hFile != INVALID_HANDLE_VALUE);