Powershell script to work around shared config block in ANCM

ancminstall.ps1

Import-Module IISAdministration

# Stop WAS/W3SVC
Stop-Service -Name WAS -Force

# Disable shared config
$sm = Get-IISServerManager
$sm.GetRedirectionConfiguration().GetSection("configurationRedirection").Attributes["enabled"].Value = $false
$sm.CommitChanges()

# Initialize variables
$aspNetCoreModuleFilePath="$env:windir\system32\inetsrv\aspnetcore.dll"
$aspNetCoreModuleV2FilePath="$env:ProgramFiles\IIS\Asp.Net Core Module\V2\aspnetcorev2.dll"
$sm = Get-IISServerManager

# Set Allow for handlers section
$appHostconfig = $sm.GetApplicationHostConfiguration()
$section = $appHostconfig.GetSection("system.webServer/handlers")
$section.OverrideMode="Allow"

# Add aspNetCore section to system.webServer
$sectionaspNetCore = $appHostConfig.RootSectionGroup.SectionGroups["system.webServer"].Sections.Add("aspNetCore")
$sectionaspNetCore.OverrideModeDefault = "Allow"
$sm.CommitChanges()

# Configure globalModule
$globalModules = Get-IISConfigSection "system.webServer/globalModules" | Get-IISConfigCollection
New-IISConfigCollectionElement $globalModules -ConfigAttribute @{"name"="AspNetCoreModule";"image"=$aspNetCoreHandlerFilePath}
New-IISConfigCollectionElement $globalModules -ConfigAttribute @{"name"="AspNetCoreModuleV2";"image"=$aspNetCoreModuleV2FilePath}

# Configure module
$modules = Get-IISConfigSection "system.webServer/modules" | Get-IISConfigCollection
New-IISConfigCollectionElement $modules -ConfigAttribute @{"name"="AspNetCoreModule"}
New-IISConfigCollectionElement $modules -ConfigAttribute @{"name"="AspNetCoreModuleV2"}

# Enable shared config
$sm = Get-IISServerManager
$sm.GetRedirectionConfiguration().GetSection("configurationRedirection").Attributes["enabled"].Value = $true
$sm.CommitChanges()

# Start WAS/W3SVC
Start-Service -Name W3SVC