Listen 127.0.0.1
Listen 192.168.1.1
Listen 111.22.33.55
...
    NameVirtualHost 192.168.1.1
    NameVirtualHost 111.22.33.55

    <VirtualHost 192.168.1.1>
    DocumentRoot c:/apache/archiv/htdocs
    ServerName www.schularchiv.de
#...
    </VirtualHost>

    <VirtualHost 111.22.33.55>
    DocumentRoot c:/apache/archiv/archiv
    ServerName board.schularchiv.de
    ServerAlias board
#...
    </VirtualHost>