Timeout in a while loop & WASP

Import-Module C:\Users\erik\Documents\WASP\WASP.dll

try
{

    $timeout = new-timespan -Seconds 5
    $sw = [diagnostics.stopwatch]::StartNew()

    # Wait until the program is started
    while ((Select-Window -ProcessName NOTEPAD) -eq $null)
    {
        Write-Progress "Waiting for NOTEPAD"

        if ($sw.elapsed -gt $timeout)
        {
            throw "time out"
        }
    }

    Write-Host "Notepad detected"
}
catch
{
    Write-Host "ERROR: $($Error[0].Exception)"
}