How can a site be up but in IIS shows it stopped?

Have I lost my mind?  Vendor installed a web application on our windows 2013 R2 server, a DEV server.  I can open the web site in my browser.  I remote into the server, in the Server Manager, I see the IP and that's the same as the web site url ip when I ping it.  I open the IIS and it shows only one default site with a Stopped status.  The root node shows the server name with my credential in parentheses.  

Is this because I don't have proper permission?  I check my user account and it shows as local administrator.  I checked under the C drive Inetput and WWWRoot folder and there is nothing showing at all.  

Thank you
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Rainer JeschorCommented:
a website does not necessilary means that IIS is used. If the vendor has created his own application exe utilizing the http.sys (which is the same as used by IIS) or any other lightweight web server then the site can run and nothing shows up in IIS manager.
E.g. SQL Server Reporting Services run a web site and web services with their own service application.
Aaron TomoskyDirector of Solutions ConsultingCommented:
Could be tomcat, Apache, anything besides iis. Do a netstat -abo and see what process has port 80
Hypercat (Deb)Commented:
It's probably an Apache website - this is a very popular method for 3rd party vendors to have a website launched for their applications without requiring the client to install IIS if they don't want it running.
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lapuccaAuthor Commented:
That makes a lot of sense that it's not IIS.  I looked under Program and Feature and I don't see TomCat installed.  Wouldn't it show if another web server is installed?  I can't even find command window to enter netstat -abo.  I did try it in the Power Shell dialog but it says needs to be elevated.  I'm a local admin so I don't know what that means.
Thank you.
Hypercat (Deb)Commented:
The easiest place to find it is on the Services list.  You should be able to open this as a local admin; just do Start/Run/Services.msc.  It would be listed as Apache Tomcat if its running.

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lapuccaAuthor Commented:
Ha!  I just found Apache 2.4 and Apache Host Helper.  Awesome! That's the problem when I've been a MS developer for so long I forgot there other other major players, lol....  I really thought I was losing my head there for a while.

Thank you everyone.
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