如何修改APACHE。CONF文件 支持多站点

目前偶的配置文件是这样的
### Discuz!EXP Web Server Settings


Listen 80
ServerName localhost
ServerAdmin webmaster@domain.com
ServerRoot "d:\Discuz!EXP\Apache2"
DocumentRoot "d:\Discuz!EXP\wwwroot"
LoadModule php5_module "d:\Discuz!EXP\PHP5\php5apache2_2.dll"
PHPIniDir "d:\Discuz!EXP\PHP5\php.ini"
<Directory "d:\Discuz!EXP\wwwroot">
Options Indexes FollowSymLinks
Order allow,deny
Allow from all
</Directory>
Alias /icons/   "d:\Discuz!EXP\Apache2\icons\"
<Directory "d:\Discuz!EXP\Apache2\icons">
Options Indexes MultiViews
AllowOverride None
Order allow,deny
Allow from all
</Directory>
NameVirtualHost *:80
<VirtualHost *:80>
ServerAdmin webmaster@domain.com
DocumentRoot "d:\Discuz!EXP\wwwroot"
ServerName *
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteRule ^(.*)/archiver/([a-z0-9-]+.html)$ $1/archiver/index.php?$2
RewriteRule ^(.*)/forum-([0-9]+)-([0-9]+).html$ $1/forumdisplay.php?fid=$2&page=$3
RewriteRule ^(.*)/thread-([0-9]+)-([0-9]+)-([0-9]+).html$ $1/viewthread.php?tid=$2&extra=page%3D$4&page=$3
RewriteRule ^(.*)/profile-(username|uid)-(.+).html$ $1/viewpro.php?$2=$3
RewriteRule ^(.*)/space-(username|uid)-(.+).html$ $1/space.php?$2=$3
</IfModule>
</VirtualHost>


用的是Discuz!EXP  默认 的设置。想支持多站点 该如何添加 单添加一下代码 不行
<VirtualHost *:80>
ServerAdmin webmaster@domain.com
DocumentRoot "d:\Discuz!EXP\wwwroot"
ServerName *
</VirtualHost>

好像有谁上次发了一篇关于这个的文章.