SoftEther VPN is open-source free software. You may use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of SoftEther VPN.
Primary Download Server (hosted by Windows Azure):
Language: English, Japanese and Simplified Chinese.
OS: Windows, Linux, Mac OS X, FreeBSD and Solaris.
Download from CNET Download.com:
Download from Softpedia.com:
You can download and build the source code of SoftEther VPN.