WCF Tutorial & Hands On Lab (HOL) - Tutorial/Lab # 01 (b) - Hosting with IIS
Now after creating "Hello World" most easy Service we will very happy to see by getting access throug a browser to access WSDL file and can be used in any other application by adding Service Reference.
Yes, we can access it just like to .asmx web service through .svc file. To host one service using IIS 6.0 - Windows Server 2003, we have to map .svc file ISAPI extention. 
Here is the the .SVC, Web.config files to download