Index: explorer-new/explorer.c
===================================================================
--- explorer-new/explorer.c	(revision 47213)
+++ explorer-new/explorer.c	(working copy)
@@ -284,7 +284,9 @@
                    TEXT("Software\\Microsoft\\Windows\\CurrentVersion\\Explorer"),
                    &hkExplorer) != ERROR_SUCCESS)
     {
-        /* FIXME - display error */
+        TCHAR Message[256];
+        LoadString(hInstance, IDS_STARTUP_ERROR, Message, 256);
+        MessageBox(NULL, Message, NULL, MB_ICONERROR);
         return 1;
     }
 
Index: explorer-new/lang/en-US.rc
===================================================================
--- explorer-new/lang/en-US.rc	(revision 47213)
+++ explorer-new/lang/en-US.rc	(working copy)
@@ -120,6 +120,7 @@
     IDS_PROPERTIES        "P&roperties"
     IDS_OPEN_ALL_USERS    "O&pen All Users"
     IDS_EXPLORE_ALL_USERS "E&xplore All Users"
+    IDS_STARTUP_ERROR     "The system cannot start explorer because the registry is corrupted or unavailable."
 END
 
 STRINGTABLE DISCARDABLE
Index: explorer-new/resource.h
===================================================================
--- explorer-new/resource.h	(revision 47213)
+++ explorer-new/resource.h	(working copy)
@@ -8,6 +8,7 @@
 #define IDS_PROPERTIES  102
 #define IDS_OPEN_ALL_USERS  103
 #define IDS_EXPLORE_ALL_USERS   104
+#define IDS_STARTUP_ERROR   105
 
 #define IDC_STARTBTN    304