Public/Repair-IISExpress.ps1
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<#
.SYNOPSIS Remove localhost certificates and re-install IISExpress with missing files option. .DESCRIPTION This function removes all localhost certificates and then performs a re-installation of IISExpress with 'missing files' option selected in order to restore the localhost certificates. .EXAMPLE Repair-IISExpress .NOTES Author: Casey Crouse Created On: 07/22/2019 #> Function Repair-IISExpress() { [CmdletBinding( SupportsShouldProcess, ConfirmImpact = 'High')] param() Write-Warning ` "Repair-IISExpress will break SSL bindings for other projects because the localhost certificate will be removed. Open the other projects in Visual Studio and use 'Reset-SSLBindings' to update the bindings with the new localhost certificate."; if ($PSCmdlet.ShouldProcess($MyInvocation.MyCommand)) { Write-Verbose "Performing $($MyInvocation.MyCommand)" # Ensure that IISExpress is not open $IISExpressInstances = Get-Process -Verbose:$VerbosePreference -ErrorAction $ErrorActionPreference | Where-Object Name -Like iisexpress* if ($null -ne $IISExpressInstances) { Write-Error "$($MyInvocation.MyCommand) stopped - please close all instances of IIS Express to continue." return } # Get the localhost certificates $Certificates = Get-ChildItem -Path "Cert:\LocalMachine" -Recurse -Verbose:$VerbosePreference -ErrorAction $ErrorActionPreference | Where-Object Subject -EQ "CN=localhost" # Delete all localhost certificates if ($null -ne $Certificates) { foreach ($cert in $Certificates) { $output = Remove-Item -Path $cert.PSPath -Force -Verbose:$VerbosePreference -ErrorAction $ErrorActionPreference | Out-Null if ($output -eq -1) { Write-Warning "`tFailed to remove certificate: $($cert.GetName())" } else { Write-Verbose "`tCertificate was removed successfully." } } } Set-Location -Path C:\ -Verbose:$VerbosePreference -ErrorAction $ErrorActionPreference Write-Verbose "Searching for application: IIS Express - this may take a minute..." $iisExpressObject = Get-WmiObject -Class Win32_Product -Verbose:$VerbosePreference -ErrorAction $ErrorActionPreference | Where-Object Name -like "IIS*Express" if ($null -ne $iisExpressObject) { Write-Verbose "Reinstalling application: $($iisExpressObject.Name)" try { $output = $iisExpressObject.Reinstall(1) if ($output.ReturnValue -eq 0) { Write-Verbose "`tRe-installation was successful!" } else { Write-Verbose "`tRe-installation was not successful! Return Code: $($output.ReturnValue). Check online here: https://msdn.microsoft.com/en-us/library/aa393044(v=vs.85).aspx for more information." } } catch [Exception] { Write-Error $_.Message } } else { Write-Verbose "IISExpress application not found." } } } |