# Cannot Change Forms or ASP.NET at the LocalHost Level with PS using Set-WebConfi **URL:** \ **Category:** PowerShell Help\ **Created:** [December 4, 2019, 11:02am UTC](https://forums.powershell.org/t/cannot-change-forms-or-asp-net-at-the-localhost-level-with-ps-using-set-webconfi/13501 "2019-12-04T11:02:11Z")\ **Posts on this page:** 2\ **Page:** 1

**Author:** ![vvicin01](https://avatars.discourse-cdn.com/v4/letter/v/85e7bf/32.png) [@vvicin01](https://forums.powershell.org/u/vvicin01)\ **Post date:** [December 4, 2019, 11:02am UTC](https://forums.powershell.org/t/cannot-change-forms-or-asp-net-at-the-localhost-level-with-ps-using-set-webconfi/13501/1 "2019-12-04T11:02:11Z")

I am attempting to create a PS Script to update or change the root level of IIS Authentication with settings for Forms Authentication and [ASP.NET](http://ASP.NET) Impersonation. I am able to change Anonymous and Windows Authentication but I am having no luck with [ASP.NET](http://ASP.NET) and Forms. I can change the [ASP.NET](http://ASP.NET) and Form settings under the DefaultSiteWebSite directory but not at the localhost level. This is what I am trying but it does not work:\ \

Forms Authentication\ \

Set-WebConfiguration system.web/authentication 'IIS:' -value @{mode=‘Forms’}\ \

ASP.Net\ \

$aspNetImpersonation = Get-WebConfigurationProperty -filter system.web/identity -name impersonate -location "IIS:" if( $aspNetImpersonation.Value -eq $true ){ Write-Host “[ASP.NET](http://ASP.NET) Impersonation is already enabled” } else { $appCmdFilePath = “$Env:SystemRoot\System32\inetsrv\appcmd.exe” & $appCmdFilePath set config "IIS:" -section:system.web/identity /impersonate:“True” } }\ \

Any idea?\ ---

**Author:** ![dotnVo](https://avatars.discourse-cdn.com/v4/letter/d/4af34b/32.png) [@dotnVo](https://forums.powershell.org/u/dotnVo)\ **Post date:** [May 16, 2024, 8:30pm UTC](https://forums.powershell.org/t/cannot-change-forms-or-asp-net-at-the-localhost-level-with-ps-using-set-webconfi/13501/2 "2024-05-16T20:30:57Z")