diff --git a/build_windows.py b/build_windows.py
index 9bb2b4d..f90ebbb 100644
--- a/build_windows.py
+++ b/build_windows.py
@@ -115,11 +115,20 @@ def run_pyinstaller():
         # Hidden imports per pywebview (EdgeChromium su Windows)
         "--hidden-import", "webview",
         "--hidden-import", "webview.platforms.edgechromium",
+        "--hidden-import", "webview.platforms.winforms",
         "--hidden-import", "clr",
+        "--hidden-import", "clr_loader",
         "--hidden-import", "requests",
-        # Collegamenti completi alle DLL .NET di pywebview/pythonnet
+        # Collegamenti completi: webview, pythonnet, clr_loader (porta
+        # con se Python.Runtime.dll + nethost.dll + runtimeconfig.json
+        # altrimenti winforms.py fallisce con "Failed to resolve
+        # Python.Runtime.Loader.Initialize ...")
         "--collect-all", "webview",
+        "--collect-all", "pythonnet",
+        "--collect-all", "clr_loader",
         "--collect-all", "mutagen",
+        "--copy-metadata", "pythonnet",
+        "--copy-metadata", "clr_loader",
         # Binari bundled
         *add_binaries,
         # Entry point
diff --git a/core/config.py b/core/config.py
index 53e10cf..08efa2d 100644
--- a/core/config.py
+++ b/core/config.py
@@ -5,7 +5,7 @@ import os
 import sys
 from pathlib import Path
 
-VERSION = "v1.7.4"
+VERSION = "v1.7.5"
 
 
 APP_NAME = "MusicTools"
diff --git a/requirements.txt b/requirements.txt
index 2f340d8..41a9779 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,4 +5,4 @@ mutagen>=1.47.0
 pyobjc-core>=10.0 ; sys_platform == "darwin"
 pyobjc-framework-Cocoa>=10.0 ; sys_platform == "darwin"
 pyobjc-framework-WebKit>=10.0 ; sys_platform == "darwin"
-pythonnet>=3.0 ; sys_platform == "win32"
+pythonnet==3.0.3 ; sys_platform == "win32"