windowsiispowershellapplication-pool

Use PowerShell to Create AppPool does not set AppPool Identity

I am attempting to use PowerShell to create an Application Pool in IIS. After searching the web, I created the following test script:

Import-Module WebAdministration

$siteName = "TestAppPool"
$userAccountName = "Domain\UserName"
$userAccountPassword = "MyPassword"

if(!(Test-Path ("IIS:\AppPools\" + $siteName)))
{
     $appPool = New-Item ("IIS:\AppPools\" + $siteName)

     #Display Default AppPool Settings
     "AppPool = " + $appPool
     "UserName = " + $appPool.processModel.userName
     "Password = " + $appPool.processModel.password
     "Runtime = " + $appPool.managedRuntimeVersion
     
     $appPool.processModel.userName = $userAccountName
     $appPool.processModel.password = $userAccountPassword
     $appPool.managedRuntimeVersion = "v4.0"
     $appPool | Set-Item

     #Display Updated AppPool Settings
     "AppPool = " +$appPool
     "UserName = " + $appPool.processModel.userName
     "Password = " + $appPool.processModel.password
     "Runtime = " + $appPool.managedRuntimeVersion
}

When I run the script, the user name and password are not updated to the values I set.

Here are the results from the two print blocks

#Display Default AppPool Settings
AppPool = Microsoft.IIs.PowerShell.Framework.ConfigurationElement
UserName = 
Password = 
Runtime = v2.0

#Display Updated AppPool Settings
AppPool = Microsoft.IIs.PowerShell.Framework.ConfigurationElement
UserName = 
Password = 
Runtime = v2.0

Looking in IIS, the Application Pool shows the .Net Framework was updated, yet the Identity is still set to ApplicationPoolIdentity. It should be Domain\UserName.

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I'm an admin on the machine, and I am running PowerShell in Administrator mode. Any ideas as to what I may be missing to get this to work?

Solution

  • You will need to change the Process Model identity type to accept a user account instead of the default ApplicationPoolIdentity and this can be done as follows:

    Set-ItemProperty -Path IIS:\AppPools\TestAppPool -Name processmodel.identityType -Value 3
Set-ItemProperty -Path IIS:\AppPools\TestAppPool -Name processmodel.userName -Value Domain\UserName
Set-ItemProperty -Path IIS:\AppPools\TestAppPool -Name processmodel.password -Value MyPassword

    I hope this helps.