FileInfo.com - The File Extensions Resource

.JVS File Extension

File Type	JavaScript Proxy Autoconfig File
File Format	File
Common?	No
File Description	JavaScript file that automatically configures a Web browser to use a specific proxy server
Program(s) that open jvs files	Mac / Windows: Any Web browser

Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/jvs