So why are people searching for "CS 80"? There are two likely explanations:
: A major fix for exposure issues, this tool allowed users to recover detail from overexposed or underexposed areas without affecting the rest of the image. Match Color Command
If you are determined to use a legacy Adobe product without paying, here is the (still not recommended):
: This version is over 20 years old and was designed for much older operating systems (like Windows XP and Mac OS X 10.2). It may not run reliably on modern hardware or OS versions. Risks of Third-Party "Fixed" Downloads