http://www.microsoft.com/intdev/inttech/cryptapi.htm A. Michael Froomkin | +1 (305) 284-4285; +1 (305) 284-6506 (fax) Associate Professor of Law | U. Miami School of Law | froomkin at law.miami.edu P.O. Box 248087 | http://www.law.miami.edu/~froomkin Coral Gables, FL 33124 USA | It's warmish here.