Question: Where can I upgrade Compaq Visual Fortran compiler? Answer: A free, downloadable upgrade to Compaq Visual Fortran 6.6.C is available for users of 6.6, 6.6A or 6.6B. http://h21007.www2.hp.com/dspp/tech/tech_TechDocumentDetailPage_IDX/1,1701,7168,00.html