X-Git-Url: https://git.distorted.org.uk/u/mdw/putty/blobdiff_plain/640d73877e44394a3c12c0aa2cf023c543933032..f5c578b08c147e3a0c9a67c75ed57a7ddb7e20dd:/windows/wincfg.c

diff --git a/windows/wincfg.c b/windows/wincfg.c
index 574e1e8f..bc6102d8 100644
--- a/windows/wincfg.c
+++ b/windows/wincfg.c
@@ -31,7 +31,7 @@ static void help_handler(union control *ctrl, void *dlg,
 }
 
 void win_setup_config_box(struct controlbox *b, HWND *hwndp, int has_help,
-			  int midsession)
+			  int midsession, int protocol)
 {
     struct controlset *s;
     union control *c;
@@ -375,5 +375,6 @@ void win_setup_config_box(struct controlbox *b, HWND *hwndp, int has_help,
     /*
      * Serial back end is available on Windows.
      */
-    ser_setup_config_box(b, midsession, 0x1F, 0x0F);
+    if (!midsession || (protocol == PROT_SERIAL))
+        ser_setup_config_box(b, midsession, 0x1F, 0x0F);
 }