IIS monitors certain files and restarts the site automatically when it sees a change

>I have a Web Service directory which contains Global.asax, Web.Config and my .asmx. Then, under it is the Bin directory with the DLL.
>
>On some occasions, I receive a hit and it forces IIS to start a new worker process by closing it immediately:
>
>CONFIG change
>HostingEnvironment initiated shutdown
>File Change Notification Error in \\MyNas\MyShare\WebService
>File Change Notification Error in
>HostingEnvironment caused shutdown
>
>I am trying to find out what is going on here.