NSIS (Nullsoft Scriptable Install System) is a professional open source system to create Windows installers. It is designed to be as small and flexible as possible and is therefore very suitable for internet distribution.
Being a user's first experience with your product, a stable and reliable installer is an important component of successful software. With NSIS you can create such installers that are capable of doing everything that is needed to setup your software.
NSIS is script-based and allows you to create the logic to handle even the most complex installation tasks. Many plug-ins and scripts are already available: you can create web installers, communicate with Windows and other software components, install or update shared components and more.
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.