irgofaster.ps1

param(
 [string]
 $numberOfConcurrentActivities
)
$registryPath = "HKLM:\SOFTWARE\Microsoft\DataTransfer\DataManagementGateway\Gateway"
$Name = "WorkerProcessCount"
if (($numberOfConcurrentActivities -match "^[\d\.]+$") -eq $false)
{
    Write-Error "Number of concurrent activites needss to be a number."
    Throw
}
if (!(Test-Path $registryPath))
{   
    Write-Host "Adding Registry Path..."
    New-Item -Path $registryPath -Force 
    New-ItemProperty -Path $registryPath -Name $name -Value $numberOfConcurrentActivities -PropertyType DWORD -Force 
}
else {
    Write-Host "Setting WorkerProcessCount"
    New-ItemProperty -Path $registryPath -Name $name -Value $numberOfConcurrentActivities -PropertyType DWORD -Force
}

OK cheers!