I was asking if those images are actually present on the ASA flash - not just referenced in the configuration.
That aside, those are really old AnyConnect images and are actually past end-of-sales. Per the AnyConnect release notes, "support for Windows 8 32-bit and Windows 8 64-bit operating systems was added in 3.0.11042 and later versions (for 3.0.x versions) and 3.1.02026 and later (for 3.1.x versions)".
Table of ContentsIntroductionVersion HistoryPossible Future
UpdatesDocuments PurposeNAT Operation in ASA 8.3+ SectionsRule Types
Network Object NATTwice NAT / Manual NATRule Types used per SectionNAT
Types used with Twice NAT / Manual NAT and Network Obje...
Table of Contents Introduction:This document describes details on how
NAT-T works. Background: ESP encrypts all critical information,
encapsulating the entire inner TCP/UDP datagram within an ESP header.
ESP is an IP protocol in the same sense that TCP an...