If you are looking for the file xc/lib/Xdmcp/Wraphelp.c, be advised that export of this software from the United States of America is assumed to require a specific license from the United States Government. It is the responsibility of any person or organization contemplating export to obtain such a license before exporting. Previously you would have find what you are looking for, in compressed form, as the file /private/xdm/help on this machine. However since we moved the server outside of the USA we had to remove the file. A compatible version of this file, implemented outside the US, can be obtained by anonymous ftp to ftp.psy.uq.oz.au (130.102.32.1) in the directory /pub/X11R5/, a copy of which is also now in this directory.