Spotlight search within compressed .zip files
I was told that Macs including users with Mavericks can search for files within compressed .zip files. I did an experiment by zipping files using Mac's "Compress" command, then tossed the original uncompressed files and emptied the trash. Spotlight cannot find the files within the compressed files that remain.
Am I wrong about that ability in Spotlight?
I see no Spotlight preference settings for choosing compressed files with an archive.
iMac, OS X Mavericks (10.9.2)