If Asp service is not displayed in services.msc but installed OR if you are having a problem starting the ASP.net service, please follow the steps:
Run -> cmd ->
C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322
or
C:\WINDOWS\Microsoft.NET\Framework64\v2.0.50727
Go to this location and enter the following command:
aspnet_regiis.exe -i
This command will repair the asp.net installation.