1. Download and install the SonicWALL Global VPN Client from http://www.firewall.cx/downloads/cisco-tools-a-applications.html
2. Download and install the Cisco VPN client (32 or 64 bit) from http://www.firewall.cx/downloads/cisco-tools-a-applications.html
3. Uninstall the SonicWALL Global VPN Client
4. Reboot computer

5.Edit registry file
Start > regedit
HKLM\System\CurrentControlSet\Services\CVirtA

@oem8.inf,%CVirtA_Desc%;Cisco Systems VPN Adapter for 64-bit Windows
change to
Cisco Systems VPN Adapter for 64-bit Windows

Create a new connection

Name: PSK username
Password : PSK password

Enter the username and password