I am an IT professional, and my husband is not...He is currently the treasurer at his volunteer fire department. They were running an old version of Peachtree and he upgraded to 2003. Unfortunatley he did not think to write down the User ID when he upgraded. We now do not know what the User ID was. It always stayed in the login screen and everyone just remembered the password. Is there anyway I can get into the .dat files through a "back door" to find the user id? Any help would be appreciated, my husband is very fustrated, and I was not involved in the upgrade. I have no knowledge of Peachtree and can not help. Thanks in advance.