Outlook 2K Personal Folder .pst sharing

I have a peer to peer network (Win 98) and want Outlook on more than one machine to be able to run as one account. I can import email to the second machine but I would like to set it up to share the Personal Folder .pst file automatically. I assume I will have to edit a configuration file… but I don’t know what file and changes to make. Please inform. Thanks.