+# remote destination. the first folder is the archive name, with no paths.
+# the second paramter is the local path component of the archive, such as
+# "/z" if the archives are found in the /z hierarchy. the third parameter
+# is the remote location of the archive, which should just be a host name.
+# the fourth parameter is the destination path component to match the local
+# path component (since these can differ).