PowerShell module to help do a silent CRM installation

CRMSetupConfiguration.psm1

function New-SetupConfiguration
{
    [PSCustomObject]$PSLogin=@{
            Login=""
            Password=""
        };
    @{
            Configuration=@{
            PatchLocation="";
            UpdateInstall=$true;
            LicenseKey="";
            SqlServer="";
            CreateDatabase=$true;
            ReportingUrl="http://"+({HOSTNAME.EXE}).Invoke()+"/reportserver";
            OrganizationCollation="Latin1_General_CI_AI";
            basecurrency=[PSCustomObject]@{
                    isocurrencycode="";
                    currencyname="";
                    currencysymbol="";
                    currencyprecision=2
                };
            Organization="";
            OrganizationUniqueName="";
            OU="OU=value, DC=subdomain, DC=subdomain, DC=com";
            WebsitePort=5555
            CreateWebsiteUrl=$true;
            WebsiteUrl="";
            InstallDir=({if(Test-Path ($idir="C:\Program Files\Microsoft Dynamics CRM")){$idir}}).Invoke();
            CrmServiceAccount=$PSLogin
        ;
            SandboxServiceAccount=$PSLogin
        ;
            DeploymentServiceAccount=$PSLogin
        ;
            AsyncServiceAccount=$PSLogin
        ;
            VSSWriterServiceAccount=$PSLogin
        ;
            MonitoringServiceAccount=$PSLogin
        ;
            SQMoptin=$true;
            muoptin=$true;
            Enableifd=$false
            ifdsettings=[PSCustomObject]@{
                    internalnetworkaddress="";
                    rootdomainscheme="";
                    sdkrootdomain="";
                    webapplicationrootdomain="";
                    discoveryrootdomain="";        
                };
            IncomingExchangeServer="";
        }    
    }
           
}

function Export-ToFile() {
    param(
        [Parameter]
        [string]$OutputFileName,

        [Parameter(Mandatory=$true)]
        [hashtable]$Configuration    
    )

    $template='<CRMSetup><Server><Patch update='+$Configuration.UpdateInstall+'>'+$Configuration.PatchLocation+'</Patch><LicenseKey>'+$Configuration.LicenseKey+'</LicenseKey><SqlServer></SqlServer><Database create="'+$Configuration.CreateDatabase+'"/><Reporting URL="'+$Configuration.ReportingUrl+'"/><OrganizationCollation></OrganizationCollation><basecurrency isocurrencycode="'+$Configuration.basecurrency.isocurrencycode+'" currencyname="'+$Configuration.basecurrency.currencyname+'" currencysymbol="'+$Configuration.basecurrency.currencysymbol+'" currencyprecision="'+$Configuration.basecurrency.currencyprecision+'"/><Organization>'+$Configuration.Organization+'</Organization><OrganizationUniqueName>'+$Configuration.OrganizationUniqueName+'</OrganizationUniqueName><OU>'+$Configuration.OU+'</OU><WebsiteUrl create="'+$Configuration.CreateWebsiteUrl+'" port="'+$Configuration.WebsitePort+'"></WebsiteUrl><InstallDir>'+$Configuration.InstallDir+'</InstallDir><CrmServiceAccount type="DomainUser"><ServiceAccountLogin>'+$Configuration.CrmServiceAccount.Login+'</ServiceAccountLogin><ServiceAccountPassword>'+$Configuration.CrmServiceAccount.Password+'</ServiceAccountPassword></CrmServiceAccount><SandboxServiceAccount type="DomainUser"><ServiceAccountLogin>'+$Configuration.SandboxServiceAccount.Login+'</ServiceAccountLogin><ServiceAccountPassword>'+$Configuration.SandboxServiceAccount.Password+'</ServiceAccountPassword></SandboxServiceAccount><DeploymentServiceAccount type="DomainUser"><ServiceAccountLogin>'+$Configuration.DeploymentServiceAccount.Login+'</ServiceAccountLogin><ServiceAccountPassword>'+$Configuration.DeploymentServiceAccount.Password+'</ServiceAccountPassword></DeploymentServiceAccount><AsyncServiceAccount type="DomainUser"><ServiceAccountLogin></ServiceAccountLogin>'+$Configuration.AsyncServiceAccount.Login+'<ServiceAccountPassword>'+$Configuration.AsyncServiceAccount.Password+'</ServiceAccountPassword></AsyncServiceAccount><VSSWriterServiceAccount type="DomainUser"><ServiceAccountLogin>'+$Configuration.VSSWriterServiceAccount.Login+'</ServiceAccountLogin><ServiceAccountPassword>'+$Configuration.VSSWriterServiceAccount.Password+'</ServiceAccountPassword></VSSWriterServiceAccount><MonitoringServiceAccount type="DomainUser"><ServiceAccountLogin>'+$Configuration.MonitoringServiceAccount.Login+'</ServiceAccountLogin><ServiceAccountPassword>'+$Configuration.MonitoringServiceAccount.Password+'</ServiceAccountPassword></MonitoringServiceAccount><SQM optin="'+$Configuration.SQMoptin+'"/><muoptin optin="'+$Configuration.muoptin+'"/><ifdsettings enabled="'+$Configuration.Enableifd+'"><internalnetworkaddress>'+$Configuration.internalnetworkaddress+'</internalnetworkaddress><rootdomainscheme>'+$Configuration.rootdomainscheme+'</rootdomainscheme><sdkrootdomain>'+$Configuration.sdkrootdomain+'</sdkrootdomain><webapplicationrootdomain>'+$Configuration.webapplicationrootdomain+'</webapplicationrootdomain><discoveryrootdomain>'+$Configuration.discoveryrootdomain+'</discoveryrootdomain></ifdsettings><Email><IncomingExchangeServer name="'+$Configuration.IncomingExchangeServer+'"/></Email></Server></CRMSetup'

    if([string]::IsNullOrEmpty($OutputFile)) {
        $template > "config.xml"
    }
    else {
        $template > ($OutputFileName+".xml")
    }
}

function Install-CRM(){
    param(
        [Parameter(Mandatory=$true)]
        [string]$CRMSetupFolder,

        [Parameter()]
        [string]$ConfigFilePath
    )

    $setup = Join-Path $CRMSetupFolder -ChildPath "SetupServer.exe"
    if (Test-Path $setup) {
        Start-Process $setup -ArgumentList ("/Q /config " + $ConfigFilePath)    
    }
    else {
        throw  "Path to CRM Setup Folder is invalid."
    }
}