Click Search entire hard disk(s) to search all hard drives on your computer for folders containing Zip files and folders named "download" or "dnload". Click Quick search to search only for a few folders likely to contain Zip files (e.g. My Documents and aol\download).
Diskette drives, network drives, and CD-ROMs are not searched. To search for files on these devices, click the Search button in the Select Zip File panel (in the WinZip® Wizard) or the Favorite Zip Folders dialog box (in WinZip Classic), then click Let me find it.
Details on the File Type filters in the Search for files of type combo box are documented in the section File Type Filters.