Venis 

Venis is a Visual Environment for Nullsoft Install System (NSIS). The Venis IX environment makes creating and maintaining NSIS install scripts quick and easy.
nsis installer setup distributable distribution uninstaller

Venis IX 

Venis is a Visual Environment for Nullsoft Install System (NSIS). The Venis IX environment makes creating and maintaining NSIS install scripts quick and easy.
install setup configure nsis