NSIS explained

NSIS may refer to:

Technology

• National Sheep Identification System, the implementation in Ireland for the identification and registration of ovine and caprine animals
• Network Store Interface Service, a Microsoft Windows service
• Next Steps in Signaling, a former Internet Engineering Task Force working group
• Nullsoft Scriptable Install System, a script-driven Windows installation system

Other uses

• National Strategy for Information Sharing, part of Nationwide Suspicious Activity Reporting Initiative
• National Security Intelligence Section, of Ireland's Directorate of Military Intelligence