Nullsoft Installation System is a pretty small, efficient, capable installation system for win32.

What's new

Fixed bug in add_string() which was causing section strings to get mangled.
Added NSIS_SUPPORT_CODECALLBACKS to config.h
Made it so that if UninstallText is not specified (or empty), the uninstall confirmation page is not shown.
Added uninstall callbacks (un.onInit, un.onUninstSuccess, un.onUserAbort, un.onUninstFailed)
Made highly corrupted installers fail more gracefully (if no install data found)
Made debug build usable (finished project settings etc)

Download Nullsoft Installation System v1.666