The DECset Context window is the main window of the Environment
    Manager's graphical user interface. Select the Context option
    from the DECset tool selection pull-down menu to bring up the
    DECset Context window.

    The DECset context window consists of the following working
    areas:

    o  menu bar

    o  context specification area

    o  dialog buttons area

    By default, the DECset Environment Manager tries to load a
    context database. The default context database is specified
    by the translation of the DECSET$CONTEXT_DB logical name;
    if this logical name is undefined, SYS$LOGIN:DECSET$KNOWN_
    CONTEXTS.DECSET_CONTEXT_DB is used as the default database if
    that file exists.

    The default context is specified by the translation of the
    DECSET$CONTEXT logical name; if this logical name is undefined,
    SAMPLE is used as the default context if a database entry exists
    for the SAMPLE context.