How to rename application pool that already has application assigned to it? - iis

Question

I have an Application pool that has a lot of applications been assigned to it, it won't let me rename.
Beside delete and creating a new application pool, is there anyway to get a new name for my application pool? I don't want to go and reassign every application in it.

Answer 1

Assign applications to another pool, rename the one you wanted renamed. Re-assign applications back to your pool.
IIS doesn't support other options

Answer 2

This was the simplest way that I could work it out, although I can't believe this isn't easier.
Import-Module WebAdministration
$oldName = "OldAppPool";
$newName = "NewAppPool";
if(-not (Test-Path IIS:\AppPools\TempPool)){
New-WebAppPool TempPool
}
$tempAppPool = Get-Item IIS:\AppPools\TempPool
foreach($site in Get-ChildItem IIS:\Sites){
$apps = $site | Get-ChildItem | Where-Object { $_.ApplicationPool -eq $oldName }
foreach($app in $apps){
$path = ("IIS:\Sites\{0}\{1}" -f $site.name, $app.name)
$path
Set-ItemProperty $path applicationPool TempPool
}
}
Set-ItemProperty "IIS:\AppPools\$oldName" -Name name -Value $newName
foreach($site in Get-ChildItem IIS:\Sites){
$apps = $site | Get-ChildItem | Where-Object { $_.ApplicationPool -eq "TempPool" }
foreach($app in $apps){
$path = ("IIS:\Sites\{0}\{1}" -f $site.name, $app.name)
$path
Set-ItemProperty $path applicationPool $newName
}
}
Remove-WebAppPool TempPool

Answer 3

No, there isn't.
Either put up with the name, or create a new App Pool and assign the applications one-by-one.
If you need to repeat it on multiple servers, you can even automate it with ADSI and JavaScript or VBScript:
http://msdn.microsoft.com/en-us/library/ms525389(v=vs.90).aspx

Answer 4

I've created similar script to automate this job.
It is a bit different from the other answer here:
It works for WebSites in addition to WebApplications;
It works for all pools: with and without assigned applications;
Powershell script:
Import-Module WebAdministration
Function Rename-AppPool([String]$oldName="", [String]$newName="") {
if ($oldName -eq "") {
Write-Warning "Parameter 'oldName' was not provided."
return
}
if ($newName -eq "") {
Write-Warning "Parameter 'newName' was not provided."
return
}
if(-not (Test-Path "IIS:\AppPools\$oldName")){
Write-Warning "There is no pool with name '$oldName' to rename. Operation stopped."
return
}
if(Test-Path "IIS:\AppPools\$newName"){
Write-Warning "Pool with name '$newName' already exists. Operation stopped."
return
}
Write-Output "Renaming app pool '$oldName' to '$newName'"
$pathsOfPools = New-Object System.Collections.ArrayList
$listOfSites = Get-ChildItem "IIS:\Sites"
foreach ($site in $listOfSites) {
if ($site.applicationPool -eq $oldName) {
$path = ("IIS:\Sites\{0}" -f $site.name)
$pathsOfPools.Add($path) | Out-Null
}
$apps = $site | Get-ChildItem
foreach ($app in $apps) {
if ($app.applicationPool -eq $oldName) {
$path = ("IIS:\Sites\{0}\{1}" -f $site.name, $app.name)
$pathsOfPools.Add($path) | Out-Null
}
}
}
$tempGuid = [Guid]::NewGuid()
$tempName = $tempGuid.Guid
if ($pathsOfPools.Count -gt 0) {
$pathsOfPools
New-WebAppPool $tempName | Out-Null
Write-Output "Temp app pool '$tempName' has been created"
Write-Output "Changing apps to Temp pool"
foreach ($path in $pathsOfPools) {
Set-ItemProperty $path applicationPool $tempName
}
}
Set-ItemProperty "IIS:\AppPools\$oldName" -Name name -Value $newName
Write-Output "Application pool name has been changed"
if ($pathsOfPools.Count -gt 0) {
Write-Output "Changing apps to New pool"
foreach ($path in $pathsOfPools) {
Set-ItemProperty $path applicationPool $newName
}
Remove-WebAppPool $tempName
Write-Output "Temp pool has been removed"
}
}
Rename-AppPool "OldName" "NewBetterName"

Answer 5

Yes, there is an option. Create a dummy app pool or make use of DefaultApppool. Associate the existing site to the defaultapppool . Now go to the original app pool, Stop the app pool and rename.
Associate back the url to the renamed appool.