Windows Mail Migration to Outlook - Version 4.0 The situation cannot be very good if you have to perform Windows Mail Migration to Outlook. But there is no way you are going to stop the process now. That is why we suggest that you take assistance from EML to PST Converter software to complete Windows Mail Migration to Outlook. This software has batch conversion option which allows users to convert multiple EML files from Windows Mail to Outlook. Users can perform Windows Mail Migration to Outlook 2010, 2007, 2005, 2003, 2000, etc. Demo version of EML to PST Converter software offers to convert 10 EML files to PST format for free and the full version does full Windows Mail Migration to Outlook at only $49.