Nullsoft - 1.6 MB ( Open Source)
NSIS is a professional tool that helps creating very easily Windows installers.
NSIS (Nullsoft Scriptable Install System), developed by the publisher of Winamp , is a professional open source system that allows creating distribution of software over the Internet in a very flexible and easy possible manner.
A safe and effective installer is a major thing for users during the first installation, so NSIS installs the software as desired.NSIS is based on scripts to handle the most complex installation tasks starting with creation of web installers, communication with Windows and other software components, installation or update of shared components etc.
Added more NSD controls and macros.
Library TLB and VxD version support on POSIX.
Added System plug-in v2 syntax option.
Added System plug-in B and H types.
Added IntPtrCmp, IntPtrCmpU, and IntPtrOp.
Added Int64Cmp, Int64CmpU and Int64Fmt (64-bit only).
Added IntOp and System::Int64Op >>> operator.
Added more !define /math operators.
Added WinVer.nsh IsDomainController.
Plug-ins now set the ASLR, DEP, LAA, NOSEH and TS PE flags.
MakeNSIS exits with code 0 for various information commands.
Removed unused NSD_LB_Clear macro parameter.
Fixed and updated Scottish Gaelic.
Added support for Python 3.
Dropped support for Python 2.6 and older.