LLM/CI Deployment Guide: Building Silent 7-Zip SFX Installers (No Dialogs)

1) Input/Output Contract

• Stub (fixed): tools/7z/7zSD.sfx (installer type, ~128KB)
• Config: configs/sfx_config.txt (UTF-8 without BOM)
• Payload: Packaged into temp.7z (must be 7z, not zip)
• Output: dist/deploy.exe (double-click = extract + execute)

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2) Config (Fully Silent Template)

;!@Install@!UTF-8!
Title="Silent Deploy"
InstallPath=".\\ "
GUIMode="2"
Silent="2"
OverwriteMode="2"
RunProgram="setup.bat"
;!@InstallEnd@!

Notes:

• GUIMode="2" + Silent suppress all UI
• InstallPath=".\\ " → extract to EXE's directory
• setup.bat must exist inside the archive and use %~dp0 to locate itself

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3) Build Script (Agent/CI reproducible)

param(
  [string]$Stub    = "tools\7z\7zSD.sfx",
  [string]$Cfg     = "configs\sfx_config.txt",
  [string]$Archive = "build\temp.7z",
  [string]$Out     = "dist\deploy.exe"
)

[byte[]]$bin =
  [IO.File]::ReadAllBytes($Stub) +
  [IO.File]::ReadAllBytes($Cfg) +
  [IO.File]::ReadAllBytes($Archive)

[IO.File]::WriteAllBytes($Out, $bin)
Write-Host "Built: $Out"

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4) Validation Protocol (CI-checkable)

• PE header sanity: stub must start with MZ
• Stub size sanity: 7zSD.sfx is typically 100–200KB
• Runtime smoke test: use RunProgram=cmd.exe to verify it doesn't regress to Extract-to

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5) Constraints (Avoid Hallucination)

• The internal archive MUST be 7z (-t7z), not zip
• Windows Explorer will not treat it as a zip; but 7-Zip/WinRAR can unpack it
• For "right-click extract" behavior, distribute a zip portable package instead — don't try to disguise SFX as zip