Is Windows XP Service Pack 3 Supported?

Overview

Windows XP Service Pack 3 (both the Home and Professional versions) is fully supported as of SonicWall / Aventail EX Series SSL VPN appliance version 9.0.0.

With Microsoft announcing End of Support for Windows XP on April 8th 2014, support for Windows XP OS with Aventail Components is no longer available as of 10.6.4 or 10.7.1. 

See related KB:
https://support.sonicwall.com/kb/sw12131