I created one windows serives
It gets the name of the service from web config file.
I used the below link for getting value from webconfig. http://www.codeprojec
You need to copy your service executable to a separate directory and use InstallUtil.exe to give it a different service name.
It sounds like you missed this section in the linked article
From a command prompt, you'll need to use InstallUtil to install both instances of your service. For instructions on how to use InstallUtil, see Installer Tool (InstallUtil.exe). Once you're done installing the service instances, you'll have something like the services console above where Service Instance 1 and Service Instance 2 are created from the same executable, only installed from different directory locations with a different service name.