| Welcome An installer is the first experience of a user with your application. Slow or unsuccesful software installations are the most irritating computer problems. A quick and user friendly installer is therefore an essential part of your software product. NSIS helps you to create such installers. NSIS installers are based on NSIS Scripts (.nsi) which can be compiled with the makensis compiler. They can also be extended with plug-ins written in C, C++, Delphi or another language. This menu contains links to applications, websites and documentation that will help you to create your installers.