(19)

(11)

EP 1 194 841 A2

(12)

(88) Date of publication A3: 06.12.2001 (43) Date of publication: 10.04.2002 Bulletin 2002/15 (21) Application number: 00960105.5 (22) Date of filing: 15.06.2000

(51) International Patent Classification (IPC)7: G06F 9/00 (86) International application number: PCT/US0040/197 (87) International publication number: WO 0079/384 (28.12.2000 Gazette 2000/52)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 18.06.1999 US 336640 (71) Applicant: SYMANTEC CORPORATION Cupertino, CA 95014 (US)	(72) Inventors: SOBEL, William, E. Cypress, CA 90630 (US) KENNEDY, Mark Redondo Beach, CA 90278 (US) (74) Representative: Brookes Batchellor  102-108 Clerkenwell Road London EC1M 5SA London EC1M 5SA (GB)