When viewing a file that does not have an associated program, WinZip® uses the program identified as the "default association" in the Program Locations tab of the Configuration dialog.
Windows 98, and Windows NT 4.0 include an optional file viewing utility, Quick View, that can be used as the default association. Quick View is capable of displaying files in a variety of formats. If you have one of these Windows versions and Quick View is not installed on your system, you can install it as follows: open the Windows CD-ROM, click Add/Remove Programs, double click Accessories, check the Quick View box, then click OK. To use Quick View with WinZip, select Configuration from WinZip's Options menu, click the Program Locations tab, type "quikview" in the Default association field (don't type the quotes), then click OK.