diff --git a/src/gui_w32.c b/src/gui_w32.c
index 7bea58e..69212eb 100644
--- a/src/gui_w32.c
+++ b/src/gui_w32.c
@@ -4827,6 +4827,10 @@
 {
     char buf[IOSIZE];
 
+# ifdef VIMDLL
+    gui.in_use = mch_is_gui_executable();
+# endif
+
     /* Can't use emsg() here, we have not finished initialisation yet. */
     vim_snprintf(buf, IOSIZE,
 	    _("E243: Argument not supported: \"-%s\"; Use the OLE version."),
diff --git a/src/main.c b/src/main.c
index a57b196..6d30143 100644
--- a/src/main.c
+++ b/src/main.c
@@ -178,6 +178,8 @@
 #ifdef VIMDLL
     // Check if the current executable file is for the GUI subsystem.
     gui.starting = mch_is_gui_executable();
+#elif defined(FEAT_GUI_MSWIN)
+    gui.starting = TRUE;
 #endif
 
 #ifdef FEAT_CLIENTSERVER
@@ -3242,6 +3244,14 @@
     reset_signals();		/* kill us with CTRL-C here, if you like */
 #endif
 
+    // If this is a Windows GUI executable, show an error dialog box.
+#ifdef VIMDLL
+    gui.in_use = mch_is_gui_executable();
+#endif
+#ifdef FEAT_GUI_MSWIN
+    gui.starting = FALSE;   // Needed to show as error.
+#endif
+
     init_longVersion();
     mch_errmsg(longVersion);
     mch_errmsg("\n");
diff --git a/src/message.c b/src/message.c
index 038ccd6..7c25658 100644
--- a/src/message.c
+++ b/src/message.c
@@ -2977,7 +2977,7 @@
     int		len;
 #endif
 
-#if (defined(UNIX) || defined(FEAT_GUI)) && (!defined(ALWAYS_USE_GUI) || !defined(VIMDLL))
+#if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) && !defined(VIMDLL)
     /* On Unix use stderr if it's a tty.
      * When not going to start the GUI also use stderr.
      * On Mac, when started from Finder, stderr is the console. */
@@ -3080,7 +3080,7 @@
     void
 mch_msg(char *str)
 {
-#if (defined(UNIX) || defined(FEAT_GUI)) && (!defined(ALWAYS_USE_GUI) || !defined(VIMDLL))
+#if (defined(UNIX) || defined(FEAT_GUI)) && !defined(ALWAYS_USE_GUI) && !defined(VIMDLL)
     /* On Unix use stdout if we have a tty.  This allows "vim -h | more" and
      * uses mch_errmsg() when started from the desktop.
      * When not going to start the GUI also use stdout.
diff --git a/src/version.c b/src/version.c
index 7905cda..6f6456b 100644
--- a/src/version.c
+++ b/src/version.c
@@ -768,6 +768,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1301,
+/**/
     1300,
 /**/
     1299,