Hi Vincenzo,
As Dennis mentioned there is the LabVIEW built in Web Server for basic [static] http web serving. If you want to incorporate cgi [dynamic] functionality I strongly recommend you get the LabVIEW Internet Toolkit. It includes a webserver that can process cgi requests. For your interest, I have an online demo using this web server, you can control and view a VI through a web browser without having the LabVIEW Run Time Engine.
View here.If you need any further information, you can contact me at charles@madry.com.au
Charles ElBayeh
Applications Engineer
Madry Technologies, NI Alliance Member
Sydney, Australia
www.madry.com.au