C:UsersSpyDAZAppDataRoamingMicrosoftSpeechFiles
NOW.
To back up these files you will have to either copy.... OR
Use the user state migration, this will enable you to transfer these settings to your new operating system or even another PC.....
In XP i "dont Quote me" there is a feature to BACK UP MY FILES...
here you can create a smiular but previous version of the user state then use the restore functioality!...
Hope fully this was help full