Features new to Windows Vista Windows Vista, Internet Explorer operates in a special "Protected Mode", which runs the browser in a security sandbox that has no access to the rest of the operating system or file system, except the "Temporary Internet Files" folder. This feature aims to mitigate problems whereby newly discovered flaws in the browser (or in ActiveX controls hosted inside it) allowed hackers to subversively install software on the user's computer (typically spyware). Internet Explorer 7 in Windows Vista also exclusively supports Advanced Encryption Standard (AES) key lengths up to 256 bits outlined in RFC 3268 and certificate revocation checking using Online Certificate
Development of Windows Vista the longhorn codename in a prominent manner. Microsoft started work on Service Pack 2 soon after Service Pack 1 was released, as Windows Server 2008 uses the same codebase as Windows Vista Service Pack 1. Service Pack 2 is the first service pack to be released for both Windows Server 2008 and Windows Vista simultaneously, sharing the same binary. Windows Vista Service Pack 2 Pre-Beta Build Number 6002.16489.lh_sp2beta.080924-1740 (Version 105) Released in October 2008. Windows Vista Service Pack 2 Beta Build Number 6002.16497.081017-1605 (Version 113) Released December 4, 2008. Download became available in the Microsoft Download Center. Windows Vista Service