NSIS (Nullsoft Scriptable Install System) 3.13 Portable Portable Download Free for Windows

Pro Tips

Create a Reproducible, Signed Installer for CI/CD

1. Use the portable ZIP (nsis-3.13.zip) in your build agent to avoid machine-specific paths. 2. Add !define VERSION 1.0.0` and !define BUILD_DATE ${DATE} at the top of your.nsi script. 3. Enable reproducible builds: SetCompressor /SOLID lzma and CRCCheck on. 4. After compilation, sign the output with signtool sign /fd sha256 /tr http://timestamp.digicert.com /td sha256 YourInstaller.exe. 5. Verify with signtool verify /pa /v YourInstaller.exe.

Reason To Do This: Reproducible, signed installers satisfy supply-chain security audits, prevent works on my machine build drift, and let users verify authenticity via Windows SmartScreen.

Build a Multi-Language Installer with Auto-Detection

1. Place desired.nlf language files (e.g., English.nlf, German.nlf) in the NSIS Contrib/Language files folder. 2. In your script, add !insertmacro MUI_LANGUAGE English and !insertmacro MUI_LANGUAGE German. 3. Use LoadLanguageFile with ${LANG_ENGLISH} / ${LANG_GERMAN} to load strings at runtime. 4. The MUI2 library will automatically select the language matching the user’s system locale, or show a language selector if multiple match.

Reason To Do This: A single installer that speaks the user’s language reduces support tickets, improves conversion rates in non-English markets, and eliminates the need to maintain separate builds per locale.

Optimize Installer Size with Component-Based Compression

1. Group files into Sections (e.g., Section Core, Section Docs, Section Plugins). 2. Use SetCompressor /SOLID lzma for the whole installer, then SetCompressor /FINAL zstd for the final pass if you prefer faster decompression. 3. Mark optional sections with Section /o so users can deselect them. 4. Test size impact with makensis /V4 script.nsi to see per-section compression ratios.

Reason To Do This: Solid LZMA compression across all files often yields 30-50% smaller installers than per-file compression. Letting users skip optional components (docs, samples) reduces download bandwidth and disk footprint for minimal installs.