Index: trunk/BNC/src/serial/win_qextserialport.cpp
===================================================================
--- trunk/BNC/src/serial/win_qextserialport.cpp	(revision 6788)
+++ trunk/BNC/src/serial/win_qextserialport.cpp	(revision 8204)
@@ -151,5 +151,5 @@
     if (!isOpen()) {
         /*open the port*/
-        Win_Handle=CreateFileA(port.toAscii(), GENERIC_READ|GENERIC_WRITE,
+        Win_Handle=CreateFileA(port.toLatin1(), GENERIC_READ|GENERIC_WRITE,
                               FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
         if (Win_Handle!=INVALID_HANDLE_VALUE) {