Uncomment this line:
NameVirtualHost *
Then simply set up virtual hosts in the httpd.conf file for apache like so:
<VirtualHost *>
ServerAdmin admin@mydomain1.com
DocumentRoot C:/IBserver/www/mydomain1
ServerName www.domain1.com
ErrorLog logs/domain1-error_log
CustomLog logs/domain1-access_log common
</VirtualHost>
<VirtualHost *>
ServerAdmin admin@mydomain2.com
DocumentRoot C:/IBserver/www/mydomain2
ServerName mydomain2.com
ErrorLog logs/mydomain2-error_log
CustomLog logs/mydomain2-access_log common
</VirtualHost>
<VirtualHost *>
ServerAdmin admin@mydomain3.com
DocumentRoot C:/IBserver/www/mydomain3
ServerName www.mydomain3.com
ErrorLog logs/mydomain3-error_log
CustomLog logs/mydomain3-access_log common
</VirtualHost>
...and so on. Then create the corresponding www folders for each virtual site.
HTH
Jonathen