diff --git a/runtime/nx2navi.manifest b/runtime/nx2navi.manifest
index 6ca7fc9c..c8eef169 100644
--- a/runtime/nx2navi.manifest
+++ b/runtime/nx2navi.manifest
@@ -5,7 +5,11 @@
      dpiAwareness PerMonitorV2 (dpiAware true/pm on Windows 10 before 1607): window, monitor and cursor sizes are physical
      pixels and the swapchain matches the screen. A DPI-unaware process gets them divided by the display scale and its
      image stretched back up by Windows, so 4K at 150% presented a 2560x1440 image, blurred. gfx_window.c follows a
-     change of the window's DPI (WM_GETDPISCALEDSIZE, WM_DPICHANGED). -->
+     change of the window's DPI (WM_GETDPISCALEDSIZE, WM_DPICHANGED).
+     longPathAware lets the wide file functions of platform/win32.c take paths longer than 260 characters (a mod's
+     files deep in a long game folder) where Windows has long paths switched on (LongPathsEnabled); elsewhere it does
+     nothing. -->
+
 <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
   <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
     <security>
@@ -19,6 +23,7 @@
       <activeCodePage xmlns="http://schemas.microsoft.com/SMI/2019/WindowsSettings">UTF-8</activeCodePage>
       <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true/pm</dpiAware>
       <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2, PerMonitor</dpiAwareness>
+      <longPathAware xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">true</longPathAware>
     </windowsSettings>
   </application>
 </assembly>
diff --git a/runtime/romfs.c b/runtime/romfs.c
index 174c59ac..d025be42 100644
--- a/runtime/romfs.c
+++ b/runtime/romfs.c
@@ -455,7 +455,10 @@ static int mod_walk_cb(const char *leaf, int kind, uint64_t size, void *ctx) {
 // The files under dir (a mod's RomFS root; rel: the RomFS path of dir, "" at the root) as overlays of mod k.
 static void mod_walk(int k, int prio, const char *dir, const char *rel) {
     ModWalk w = {k, prio, dir, rel};
-    plat_fs_list(dir, mod_walk_cb, &w);
+    // a folder that cannot be listed (no permission, a path longer than Windows allows) loses its files: say so
+    if (plat_fs_list(dir, mod_walk_cb, &w) != PLAT_FS_OK)
+        rt_log("mods: %s: cannot list %s (error %d); its files are left out", mods_at(k)->name, dir,
+               plat_fs_os_error());
 }
 
 // What overlays compete on: the RomFS index, an added file's path; the higher prio first.