Kernel for OST to PST software is a standalone and freeware OST PST conversion software that simplifies the task of migration without taking much time and efforts. This freeware is proven to handle severely corrupt OST files that cannot be repaired using Inbox repair utility (scanpst.exe). The software also supports the migration of OST files to cloud-based Office 365 mailbox, email servers and web-based email apps (like Gmail, Yahoo).