CmdID / PowerShell / Cmdlets / Start
Start-WebItem
Starts an application pool or a website. Windows Server PowerShell reference
From the Windows Server PowerShell reference 3 parameters Its page in the reference
Parameters
-PSPathSpecifies the path to the site or application pool to start.-PassthruPasses an object that represents the web item to the pipeline.-ProtocolSpecifies the protocol binding of the site to start.