INETINFO.EXE
When ever client make a request to HTMLor ASP or ASPX page to the webserver INETINFO.EXE will forward the request to realted DLL and requested page send to the client
HTML--> Default website
.ASP --> ASP.DLL
.ASPX --> ASPNET_ISAPI.DLL
above DLL will proces all the sever side statemetns and produces the Temperary page . INETINFO.EXE is send this Temperary page to the client System.
ASPNET_ISAPI.DLL
When client make a request to ASP.NET webpage INETINFO.EXE will forward reuest to ASPNET_ISAPI.DLL this ASPNET_ISAPI.DLL will sent Application name and webpage name to worker proces
ASPNET_ISAPI.DLL will act as a mediator between weberver and .netframwork.
When ever client make request the Asp.net Applications inetinfo.exe that is goes to IIS serverthat IIS server will send request to the Asp.net Engine by using command Aspnet_isapi.dll,In Asp.net engine comes maainly Two componets 1)Http module :it is pipline2)Http handle:loading page life cycleaspnet_wp.exe it comes under Work processor.
Thanks