+locking; for example, by using this pair of commands:
+
+.EX
+xscreensaver-command -exit
+xscreensaver
+.EE
+If you get "connection refused" errors when running \fIxscreensaver\fP
+from \fIxdm\fP, then this probably means that you have
+.BR xauth (1)
+or some other security mechanism turned on. One way around this is to
+add \fB"xhost\ +localhost"\fP to \fIXsetup\fP, just before \fIxscreensaver\fP
+is launched.
+
+Note that this will give access to the X server to anyone capable of logging
+in to the local machine, so in some environments, this might not be
+appropriate. If turning off file-system-based access control is not
+acceptable, then running \fIxscreensaver\fP from \fIxdm\fP might not be
+possible, and users will have to launch it themselves instead of having it
+be launched by \fIxdm\fP before anyone logs in.
+
+For more information on the X server's access control mechanisms, see the
+man pages for
+.BR X (1),
+.BR Xsecurity (1),
+.BR xauth (1),
+and
+.BR xhost (1).
+.SH USING CDE (COMMON DESKTOP ENVIRONMENT)
+The easiest way to use \fIxscreensaver\fP on a system with CDE is to simply
+switch off the built-in CDE screensaver, and use \fIxscreensaver\fP instead;
+and second, to tell the front panel to run
+.BR xscreensaver\-command (1)
+with the \fI\-lock\fP option when the \fILock\fP icon is clicked.
+
+To accomplish this involves five steps:
+.RS 4
+.TP 3
+\fB1: Switch off CDE's locker\fP
+Do this by turning off ``\fIScreen Saver and Screen Lock\fP'' in the
+Screen section of the Style Manager.
+.TP 3
+\fB2: Edit sessionetc\fP
+Edit the file \fI~/.dt/sessions/sessionetc\fP and add to it the line
+
+.EX
+xscreensaver &
+.EE
+This will cause \fIxscreensaver\fP to be launched when you log in.
+(As always, make sure that xscreensaver and the graphics demos are on
+your \fB$PATH\fP; the path needs to be set in \fI.cshrc\fP
+and/or \fI.dtprofile\fP, not \fI.login\fP.)
+.TP 3
+\fB3: Create XScreenSaver.dt\fP
+Create a file called \fI~/.dt/types/XScreenSaver.dt\fP with the following
+contents:
+
+.EX
+ACTION XScreenSaver
+{
+ LABEL XScreenSaver
+ TYPE COMMAND
+ EXEC_STRING xscreensaver-command -lock
+ ICON Dtkey
+ WINDOW_TYPE NO_STDIO
+}
+.EE
+This defines a ``lock'' command for the CDE front panel, that knows how
+to talk to \fIxscreensaver\fP.
+.TP 3
+\fB4: Create Lock.fp\fP
+Create a file called \fI~/.dt/types/Lock.fp\fP with the following
+contents:
+
+.EX
+CONTROL Lock
+{
+ TYPE icon
+ CONTAINER_NAME Switch
+ CONTAINER_TYPE SWITCH
+ POSITION_HINTS 1
+ ICON Fplock
+ LABEL Lock
+ PUSH_ACTION XScreenSaver
+ HELP_TOPIC FPOnItemLock
+ HELP_VOLUME FPanel
+}
+.EE
+This associates the CDE front panel ``Lock'' icon with the lock command
+we just defined in step 3.
+.TP 3
+\fB5: Restart\fP
+Select ``\fIRestart Workspace Manager\fP'' from the popup menu to make
+your changes take effect. If things seem not to be working, check the
+file \fI~/.dt/errorlog\fP for error messages.
+.RE
+.SH USING HP VUE (VISUAL USER ENVIRONMENT)
+Since CDE is a descendant of VUE, the instructions for using xscreensaver
+under VUE are similar to the above:
+
+.RS 4
+.TP 3
+\fB1: Switch off VUE's locker\fP
+Open the ``\fIStyle Manager\fP'' and select ``\fIScreen\fP.''
+Turn off ``\fIScreen Saver and Screen Lock\fP'' option.
+.TP 3
+\fB2: Make sure you have a Session\fP
+Next, go to the Style Manager's, ``\fIStartup\fP'' page.
+Click on ``\fISet Home Session\fP'' to create a session, then
+on ``\fIReturn to Home Session\fP'' to select this session each
+time you log in.
+.TP 3
+\fB3: Edit vue.session\fP
+Edit the file \fI~/.vue/sessions/home/vue.session\fP and add to it
+the line
+.EX
+vuesmcmd -screen 0 -cmd "xscreensaver"
+.EE
+This will cause \fIxscreensaver\fP to be launched when you log in.
+(As always, make sure that xscreensaver and the graphics demos are on
+your \fB$PATH\fP; the path needs to be set in \fI.cshrc\fP
+and/or \fI.profile\fP, not \fI.login\fP.)
+.TP 3
+\fB3: Edit vuewmrc\fP
+Edit the file \fI~/.vue/vuewmrc\fP and add (or change) the Lock control:
+.EX
+CONTROL Lock
+{
+ TYPE button
+ IMAGE lock
+ PUSH_ACTION f.exec "xscreensaver-command -lock"
+ HELP_TOPIC FPLock
+}
+.EE
+This associates the VUE front panel ``Lock'' icon with the xscreensaver
+lock command.
+.RE