From 54cfb62597c80f6b5688ad109c3ca94263789e91 Mon Sep 17 00:00:00 2001
From: Jeff Young <jeff@rokeby.ie>
Date: Thu, 3 Jul 2025 17:35:34 -0600
Subject: [PATCH] Double check file dlg results on MSW.

---
 kicad/tools/kicad_manager_control.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/kicad/tools/kicad_manager_control.cpp b/kicad/tools/kicad_manager_control.cpp
index bb10b99027..a634dd71cc 100644
--- a/kicad/tools/kicad_manager_control.cpp
+++ b/kicad/tools/kicad_manager_control.cpp
@@ -409,8 +409,13 @@ int KICAD_MANAGER_CONTROL::openProject( const wxString& aDefaultDir )
     if( !pro.IsAbsolute() )
         pro.MakeAbsolute();
 
-    if( !pro.FileExists() )
+    // You'd think wxFD_FILE_MUST_EXIST and the wild-cards would enforce these.  Sentry
+    // indicates otherwise (at least on MSW).
+    if( !pro.Exists() || (   pro.GetExt() != FILEEXT::ProjectFileExtension
+                          && pro.GetExt() != FILEEXT::LegacyProjectFileExtension ) )
+    {
         return -1;
+    }
 
     m_frame->LoadProject( pro );