How to expose services from the windows virtual machine in cloud?

• Create a Windows VM instance on cloud.
• Install all the software required for the service.
• Start any server Weblogic or Apache tomcat server on which you are deploying.
• In the Admin console(webpage) settings of VM i,e in the browser of your Personal System... Configure the end points (tcp:Port numbers for eg 7001 for weblogic,80 for public and 8080 for private networks) to expose them to public
• Finally you have to disable firewall settings in the VM..

Now you can use a service deployed on the web-server from a remote system through internet using public ip address given by the service provider

http://www.windowsazure.com/en-us/develop/java/tutorials/tomcat-on-a-virtual-machine/
http://www.youtube.com/watch?v=IX8xb-suzVg

Hope this helps you