It sounds like it want your Adobe ID and password. A screenshot of the dialog would help confirm that.
It's a very old version and if your intention is to create webhelp, you will likely run into issues that cannot be fixed.
See www.grainge.org for free RoboHelp and Authoring information.
Thank you Peter. Yes, it asks for User ID and password. where exactly to get this user id and password?
No one is aware of this in my company.