Rerun Y2K #17 answer

KAZAA

Why KAZAA is a Y2K word

Napster's heir for millions of downloaders: free music, mislabeled files, and a complimentary toolbar of malware.

About Rerun

Rerun is a free daily word game set in the culture of another time. Season 01 is Y2K: guess one late-’90s or 2000s word in six tries, with a category as your clue. A new puzzle unlocks every day at midnight Pacific.