ol areaUS6041363 *Mar 29, 1996Mar 21, 2000Sun Microsystems, Inc,Imbedding virtual device driver (VxD) calls in a dynamic link library (DLL)US6275976Feb 25, 1997Aug 14, 2001Joseph M. ScanduraAutomated method for building and maintaining software including methods for verifying that systems are internally consistent and correct relative to their specificationsUS6308146Oct 30, 1998Oct 23, 2001J. D. E