Nullsoft, Inc. is a software house founed in 1997 by Justin Frankel. Its most famous products include the Winamp media player and the SHOUTcast MP3 streaming media server. In recent years, their open source installer system, NSIS, has also risen to popularity as a widely used alternative to commercial products like InstallShield. The company's name is a parody of Microsoft, deriving from the fact that null (nothing) is smaller than micro.Mike the Llama is the company's mascot; this is frequently referred to in promotional material (especially for Winamp) citing llamas.