diff --git a/src/libCom/osi/os/WIN32/epicsTempFile.cpp b/src/libCom/osi/os/WIN32/epicsTempFile.cpp
index b9685216c..1fdb8cd5f 100644
--- a/src/libCom/osi/os/WIN32/epicsTempFile.cpp
+++ b/src/libCom/osi/os/WIN32/epicsTempFile.cpp
@@ -49,6 +49,13 @@ epicsShareFunc FILE * epicsShareAPI epicsTempFile ( void )
     // _O_BINARY no translation 
     // _O_SHORT_LIVED avoid flush to disk
     //
+    // (Borland does not supply _O_SHORT_LIVED and _O_TEMPORARY)
+#   ifndef _O_SHORT_LIVED
+#       define _O_SHORT_LIVED 0x1000
+#   endif
+#   ifndef _O_TEMPORARY
+#       define _O_TEMPORARY 0x0040
+#   endif
     const int openFlag = _O_CREAT | _O_EXCL | _O_RDWR | 
         _O_SHORT_LIVED | _O_BINARY | _O_TEMPORARY;
     int fd = open ( pName, openFlag, _S_IWRITE );
@@ -59,6 +66,6 @@ epicsShareFunc FILE * epicsShareAPI epicsTempFile ( void )
         return 0;
     }
     free ( pName );
-    return fdopen ( fd, "w+bTD" );
+    return _fdopen ( fd, "w+bTD" );
 }