1. Edit the httpd.conf file
In APACHE_PATH/conf/httpd.conf:
# Virtual hosts
Include conf/extra/httpd-vhosts.conf
Uncomment the line above.
2. Edit the httpd-vhosts.conf file
In APACHE_PATH/conf/extra/httpd-vhosts.conf
NameVirtualHost 127.0.0.2:80
Listen 127.0.0.2:80
<VirtualHost>
ServerName subdomain1.local
DocumentRoot "C:/wamp/apps/some_project/"
DirectoryIndex index.php
<Directory "C:/wamp/apps/some_project/">
AllowOverride All
Allow from All
</Directory>
#you can even have an alias here
Alias /blog "C:/wamp/apps/some_project_blog/"
<Directory "C:/wamp/apps/some_project_blog/">
AllowOverride All
Allow from All
</Directory>
</VirtualHost>
Note: The ServerName is configured in C:\windows\system32\drivers\etc\hosts (see step 3). If you do not plan to follow step 3, comment out the line with the ServerName directive.
3. Edit your hosts file
(This isn't really necessary, but it doesn't hurt to have some cool top-level-domain redirection.)
In C:\windows\system32\drivers\etc\hosts (or wherever it is), add an additional line:
127.0.0.2 subdomain1.local
Note: you cannot specify a port number here. (this is not port mapping) E.g.: 127.0.0.2:8080 will not work.
4. "Debugging" purposes
You can do these in cmd:
ipconfig /flushdns
ipconfig /displaydns
The /displaydns command isn't necessary, but its useful for checking if you got your settings right.
5. Restart Apache
For more reading up, check out the friendly Apache docs.
