--- mstools/samples/rpc/whello/whello.idl	2018/08/09 18:20:56	1.1.1.1
+++ mstools/samples/rpc/whello/whello.idl	2018/08/09 18:24:16	1.1.1.3
@@ -1,8 +1,12 @@
-[ uuid (12345678-1234-1234-1234-123456789ABC),
-  version (1.0) ]
+[ uuid(2F5F6520-CA46-1067-B319-00DD010662DA),
+  version(1.0),
+  pointer_default(unique)
+]
 interface whello
-
 {
-void HelloProc([in, string, ref] char * pszString);
+
+void HelloProc([in, string] unsigned char * pszString);
+
 void Shutdown(void);
+
 }