Look up install, uninstall, and command-line switches for MSI, InstallShield, NSIS, Inno Setup, WiX, and more. Search by name or switch — or drop in the installer and let FLAGR find every flag it exposes.
If the filename doesn't give it away, these checks usually will.
Most engines print their own usage text. Try /?, /help, or --help — it often names the engine outright.
Open the .exe in 7-Zip or a strings viewer and look for text like "Inno Setup", "Nullsoft", "InstallShield", or "Wise Installation" near the top of the file.
Right-click → Properties → Details — the Comments or Product Name field often names the packaging tool.
Cycle through /S, /s, /silent, /verysilent, /quiet, -q, --silent — one of these covers most third-party .exe installers.
FLAGR is independent — not affiliated with, endorsed by, or sponsored by Microsoft, Flexera/InstallShield, WiX, NSIS, Igor Pavlov/7-Zip, or any other named vendor. Switches are compiled from public documentation and common practice; behavior varies by version, so test in a non-production environment before mass deployment.
File detection runs entirely in your browser and is never uploaded anywhere. Engine,
flag, and usage-text detection are heuristic, not guaranteed — confirm with the
installer's own /? or --help output before scripting a deployment.