Back in the dark ages (2011) I wrote his blog post about using udbx to export mail from DBX files. In the intervening decade the unDBX project has moved to sourceforge https://sourceforge.net/projects/undbx/ and the import export tools addon has changed to https://addons.thunderbird.net/en-US/thunderbird/addon/importexporttools-ng/?src=ss But you can still go that route. BTW page faults are often ram, but just as often they are hard disk errors. (Windows XP gives the drive a flogging paging out of it's limited ram to virtual memory. I suggest you run the XP scandisk and defrag utilities over the drive. It will be tediously slow, but in the process of basically reading and writing every sector on the drive it will most likely identify any dodgy ones and mark them. If you are all handy around computer hardware, removing and resetting memory modules can also improve page fault issues as the modules have been known to move over time, despite being locked into place.