FTP from VMS can't set the default directory

I'm trying to send a file from a vms system. Here is the log lines from the server. The CWD Fails with directory not found. But it does exist and it's in the shared list for group Work, which contains the user anonymous.

(000017)8/7/2012 11:27:27 AM - (not logged in) (192.168.0.169)> USER anonymous
(000017)8/7/2012 11:27:27 AM - (not logged in) (192.168.0.169)> 331 Password required for anonymous
(000017)8/7/2012 11:27:27 AM - (not logged in) (192.168.0.169)> PASS **************
(000017)8/7/2012 11:27:27 AM - anonymous (192.168.0.169)> 230 Logged on
(000017)8/7/2012 11:27:27 AM - anonymous (192.168.0.169)> SITE +VMS+
(000017)8/7/2012 11:27:27 AM - anonymous (192.168.0.169)> 504 Command not implemented for that parameter
(000017)8/7/2012 11:27:27 AM - anonymous (192.168.0.169)> CWD c:\tmp\
(000017)8/7/2012 11:27:27 AM - anonymous (192.168.0.169)> 550 CWD failed. "/c:/tmp": directory not found.
(000017)8/7/2012 11:27:27 AM - anonymous (192.168.0.169)> QUIT
(000017)8/7/2012 11:27:27 AM - anonymous (192.168.0.169)> 221 Goodbye

The extra / in "/c:/tmp" bothers me as there is an extra one there and the directions of the slashes has been reversed. Any thoughts?
Thanks.