Screensaver file used by Incredimail Magenetic, a free desktop background and screensaver program; includes images and animations that run when the computer has been idle for a set amount of time; may be included with the Magnetic software or downloaded from the Internet.
Program(s) that open nss files
Windows: IncrediMail Magnetic
Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/nss
