<p>I am doing some research on Unicode for a white-paper I am writing. Does anyone remember the first version of MS Office on the Windows platform that was fully Unicode compliant? Not having much luck Googling this answer out of the net.</p>

office 97:
"The universal character set provided by Unicode overcomes this problem. Office 97 was the first version of Office to support Unicode in all applications except Microsoft Access and Microsoft Outlook®. In Office 2000, Access and Microsoft Publisher gain Unicode support. Microsoft FrontPage® 2000 also supports Unicode on Web pages, but text typed into dialog boxes and other elements of the user interface are limited to characters defined by the user’s code page." - Microsoft
url:
http://office.microsoft.com/en-us/ork2000/HA011382921033.aspx