What file holds the email accounts?

[Anne]

the pst file contains all data except the email accounts. Where is the
default location of that file and what is it called.
Had to reinstall everything, but I have the old harddrive to get data from.
Prefer not to have to retype everything.

 

[DL]

Afraid you cannot, the accounts are stored in the registry, and can only be
saved with a functioning sys