Good question, here. From knowledge I have, several years ago Microsoft licensed a custom version of Winzip; the Grandfather of all file compression utilities. Industry insiders have told me Microsoft did a Hostile LBO of the company who invented Winzip,
"WINZIP COMPUTING" in
Mansfield, Connecticut. Same sort of thing when MS performed an LBO of Intuit in San Diego, the company who makes Quicken & Quickbooks. This was a very standard sort of deal with MS in the 80s into the early 2000s. However, since MS has gotten so large they control the public media in both print and digital, and these sorts of announcements are kept very hush-hush.
So, Winzip technology was incorporated into earlier version of Windows (around the time of XP-Vista); 2006-2007, and it was built into the Windows Explorer file management utility that comes free with every version of Windows. Win10 has official renamed this program to
WINDOWS FILE EXPLORER now. It too contains the same technology.
By, the way, Winzip Computing was incidentally sold to Corel, the same people who bought WordPerfect in about 2006 or so, and the last licensed version I got through them was Winzip v11.1.
Might explain a few things for you; but I agree with Mike and Kemical that 7-zip is so much easier to use for the average home user.
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