Can you confirm that I have your test failure correctly? pri_path = path 1 alt_path = NULL works pri_path = path 2 alt_path = NULL works pri_path = alt_path = path 1 works pri_path = alt_path = path 2 works pri_path = path 1 alt_path = path 2 fails Are the only difference between path 1 and 2 the S/DGIDs and S/DLIDs? - Sean