Tag Archives: idleTimeout

PowerShell quickie: Setting IIS App Pool IdleTimeout

I just did this and was frankly awash in a sea of misinformation, so here’s how it’s done.

$ValueToSet = 40
$AppPoolPrefix = "*"

$appPools = gci IIS:\AppPools | ? {$_.Name -like $AppPoolPrefix}

$appPools | % {
    $currentTimeout = $_.processModel.IdleTimeOut
    if($ValueToSet -ne $CurrentTimeout.Minutes)
        $_.processModel.IdleTimeout = [TimeSpan]::FromMinutes($ValueToSet)
        $_ | Set-Item 
        Write-Host "Set" $_.Name "to" $_.processModel.IdleTimeout 


What are the gotchas here?

Well one, just calling Set-ItemProperty does nothing but apply your change to an in-memory copy of the object. Not the object itself. Forget that solution

Second, you need to pass in a timespan object, not merely a straight number, or you’ll get unexpected results when it tries to set the timeout in ticks

Third: Do not forget the Set-Item call, or you’re utterly lost.

And that’s about it.

[update: I forgot to say, include:

Import-Module WebAdministration

At the start. I don’t have to, because my servers ipmo that module in their PowerShell profiles. But you’ll need to.]