# Inno Setup ## Identification A Windows installer-building system whose scripts normally use the `.iss` extension. ## Notebook evidence - [[Scanned_20260730-1946|Scanned_20260730-1946]], PDF page 20. ## Relationships and evidentiary boundary [[WiX Toolset]] · [[Windows Preinstallation Environment]] · [[Software Supply-Chain Provenance]]. The notebook occurrence preserves a historical compatibility or software clue. It does not alone prove installation, use, ownership, provenance, or the exact identification of uncertain handwriting.