Updating my Outlook 95

My home computer e-mail is using Outlook 95, which has
stopped working. When I attempt to open it, I receive
a "This program has performed an illegal operation and
will be shut down" message. When I click OK, Oulook
closes. I cannot send or receive my home e-mail. I've
searched for upgrades but cannot find any that support
Outlook 95. I receive the same error on Outlook Express.
How can I update this program? Thanks.