Business Plan Pro 2004 and older, Marketing Plan Pro, Cash Compass, Ad Plan Pro and Web Strategy Pro are compatible with Windows NT 4. Our Business Plan Toolkit product is Macintosh only, not compatible with Windows NT 4. Beginning with our 2005 product line we will be discontinuing support for the NT 4 version of Windows but the software will still install and operate properly in Windows 2000 or Windows XP.

Thanks for asking,

Tim Berry