Can a script update the Identity tab fields of Application Pool properties in IIS 6.0+
You can use such PowerShell script:
Import-Module WebAdministration$appPool = New-WebAppPool -Name "MyAppPool"$appPool.processModel.userName = "domain\username"$appPool.processModel.password = "ReallyStrongPassword"$appPool.processModel.identityType = "SpecificUser"$appPool | Set-Item