ExtractWiseOverlay (and ExtractWise for NE) opened a second stream on
the executable for multi-part Wise installers before checking for a
Wise overlay header at all. For any other executable that stream was
never closed, so the file stayed open until the stream was finalized.
On Windows such a file cannot be deleted, so an extraction folder that
contains it is left behind in TEMP.
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>