$thumbPrint
                          
                           = 
                          
                            $null
                          
                          
                            $certs
                          
                           = 
                          
                            get-childitem
                          
                          
                             cert:\\LocalMachine\\my

                          
                          
                            foreach
                          
                           (
                          
                            $certItem
                          
                          
                            in
                          
                          
                            $certs
                          
                          
                            )
{
    
                          
                          
                            $certItem
                          
                          
                            .Issuer
    
                          
                          
                            if
                          
                           (
                          
                            $certItem
                          
                          .Issuer 
                          
                            -eq
                          
                          
                            "
                          
                          
                            CN=localhost
                          
                          
                            "
                          
                          
                            )
    {
        
                          
                          
                            $thumbPrint
                          
                           = 
                          
                            $certItem
                          
                          
                            .Thumbprint
        
                          
                          
                            break
                          
                          
                            
    }
}


                          
                          
                            Write-Host
                          
                          
                            $thumbPrint
                          
                          
                            if
                          
                           (
                          
                            $null
                          
                          
                            -ne
                          
                          
                            $thumbPrint
                          
                          
                            ){
    
                          
                          
                            $mypwd
                          
                           = 
                          
                            ConvertTo-SecureString
                          
                           -String 
                          
                            "
                          
                          
                            1234
                          
                          
                            "
                          
                           -Force -
                          
                            AsPlainText
    
                          
                          
                            Get-ChildItem
                          
                           -Path cert:\localMachine\my\
                          
                            $thumbPrint
                          
                           | 
                          
                            Export-PfxCertificate
                          
                           -FilePath C:\temp\sampleCert.pfx -Password 
                          
                            $mypwd
                          
                          
                            Write-Host
                          
                          
                            "
                          
                          
                            Export IIS Express cert as Pfx file sucessfully.
                          
                          
                            "
                          
                          
                            
}

                          
                          
                            else
                          
                          
                             {
    
                          
                          
                            Write-Host
                          
                          
                            "
                          
                          
                            Can't find IIS Express cert.
                          
                          
                            "
                          
                          
                            
}