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#11
I was having the same problem with file associations constantly changing (sometimes it seemed almost hourly).
Based on what other members were saying about WinZip I ran a few tests.
Sure enough, every time I opened a WinZip file it caused some file associations to change back to Microsofts defaults.
I was using WinZip v16.5 at the time.
I upgraded to WinZip 20 and have never had a problem with changing file associations since that day.