diff --git a/lib/parse/cmdline.py b/lib/parse/cmdline.py
index 6cda6f500..b5d13e7c8 100644
--- a/lib/parse/cmdline.py
+++ b/lib/parse/cmdline.py
@@ -788,7 +788,7 @@ def cmdLineParser():
         prompt = False
         advancedHelp = True
 
-        for arg in sys.argv:
+        for arg in (sys.argv if not IS_WIN else shlex.split(" ".join(sys.argv))):
             argv.append(getUnicode(arg, encoding=sys.getfilesystemencoding()))
 
         checkDeprecatedOptions(argv)