WinZip and ZipFix are legitimate applications, but that doesn't necessarilly mean anything when yuckware is considered. Could you provide more detail as to the text of the popups and the circumstances of their occurrence? Have you tried right-clicking within the popup window and selecting "Properties" to see if there might be a clue to the window's origin? Have you looked under "Processes" in Task Manager to see if there are any suspicious entries coincident with the appearance of those popups?
A well tested procedure for the discovery and preliminary cleanup of yuckware may be found
HERE. In the event you decide to follow through with that approach, just continue your relevant feedback on this thread; I'll keep an eye out to see if you reply here. Might take me a while to respond - I do have other things to do - but I'm pretty good about keeping track of this sorta stuff.
Also, if you do wish to pursue the issue here on A2K, you might find it convenient to click "Turn on email updates" down at the bottom right of this page; doing so will cause a notification to be sent to you whan this thread receives a reply.
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