+=== 9^SET/REGISTER <call> ...^Mark a user as registered
+=== 9^UNSET/REGISTER <call> ...^Mark a user as not registered
+Registration is a concept that you can switch on by executing the
+
+ set/var $main::regreq = 1
+
+command (usually in your startup file)
+
+If a user is NOT registered then, firstly, instead of the normal
+motd file (/spider/data/motd) being sent to the user at startup, the
+user is sent the motd_nor file instead. Secondly, the non registered
+user only has READ-ONLY access to the node. The non-registered user
+cannot use DX, ANN etc.
+
+The only exception to this is that a non-registered user can TALK or
+SEND messages to the sysop.
+