sandwichVPN 4.5 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The software belongs to Internet & Network Tools. This free software was originally developed by SandwichVPN. We recommend checking the downloaded files with any free antivirus.
From the developer:
SandwichVPN is a Virtual Private Network (VPN) and Tunneling program that enables you to unblocks your favorite websites. The program allows you to hide your IP and real identity, to switch between various IPs and to surf the Internet anonymously and securely.
You may want to check out more software, such as COMODO Firewall Pro, SecureCRT or Odyssey Client, which might be related to sandwichVPN.