CmdID

CmdID / PowerShell / Cmdlets / New

New-WebApplication

Creates an IIS web application. Windows Server PowerShell reference

From the Windows Server PowerShell reference 5 parameters Its page in the reference

Opens CmdID with your command, read as PowerShell. It is read in your browser and sent nowhere.

Parameters

5 in the Windows Server PowerShell reference
-ApplicationPoolSpecifies the name of the application pool in which the new web application runs.
-ForceForces the creation of the application without prompting for user confirmation.
-NameSpecifies the name of the web application to create.
-PhysicalPathSpecifies the physical path to the web application files.
-SiteSpecifies the name of the site on which this cmdlet creates an application.