--- a/WinWorkstation.st	Fri May 24 16:35:27 2019 +0200
+++ b/WinWorkstation.st	Fri May 24 16:39:42 2019 +0200
@@ -15613,7 +15613,7 @@
     };
 
     if (sessionId == 0) {
-        RETURN ( __MKSMALLINT(0) );
+        RETURN ( nil );
     }
 
     RETURN ( __MKSMALLINT(1) );