Ok but, I want to suggest you, use a single wizard application SysBud Thunderbird to Outlook Converter which easily exports Thunderbird file into Outlook environment into few simple clicks (Load, Convert, Export). This tool specially designed to export Thunderbird data into Outlook PST format. It's Auto Load option help you to for quick migration because Auto Load Tab automatically search your TB file and loads in the software but Thunderbird must be pre-installed in your system. You can migrate large & multiple TB file into PST format at a time. For more detail, please visit here:-http://www.sysbud.com/thunderbird-to-outlook.html