--- mstools/samples/rpc/handles/cxhndl/cxhndl.idl	2018/08/09 18:20:56	1.1
+++ mstools/samples/rpc/handles/cxhndl/cxhndl.idl	2018/08/09 18:22:03	1.1.1.2
@@ -1,4 +1,4 @@
-[ uuid (12345678-1234-1234-1234-123456789ABC),
+[ uuid (A4F1DB00-CA47-1067-B31F-00DD010662DA),
   version(1.0),
   pointer_default(unique)]
 interface cxhndl
@@ -6,13 +6,13 @@ interface cxhndl
 #define BUFSIZE 1024
 
 typedef [context_handle] void * PCONTEXT_HANDLE_TYPE;
-typedef PCONTEXT_HANDLE_TYPE * PPCONTEXT_HANDLE_TYPE;
+typedef [ref] PCONTEXT_HANDLE_TYPE * PPCONTEXT_HANDLE_TYPE;
 
 short RemoteOpen([out] PPCONTEXT_HANDLE_TYPE pphContext,
-		 [in, string] char * pszFile);
+		 [in, string] unsigned char * pszFile);
 
 short RemoteRead([in, out] PPCONTEXT_HANDLE_TYPE pphContext,
-		 [out] char  achBuf[BUFSIZE],
+		 [out] unsigned char  achBuf[BUFSIZE],
 		 [out] short * pcbBuf);
 
 short RemoteClose([in, out] PPCONTEXT_HANDLE_TYPE pphContext);