Double clicking on a filename listed in the main WinZip® window will perform the same action as when you double click on a file in My Computer or Windows Explorer. If the file is executable (has a filename extension of EXE, COM, BAT, or PIF), WinZip will run it. Otherwise WinZip will open the file with the appropriate application. For example, files with a filename extension of .TXT are opened by the Windows Notepad application (unless you have changed the TXT association). The appropriate application is determined via Windows Associations. If no application is associated with the file, WinZip will run the program specified as the Default association in the Program Locations tab of the Configuration Dialog Box. If you modify the file while viewing it, WinZip will offer to add the modified file to the archive.
If the Smart DOC file handling option in the Miscellaneous tab of the Configuration Dialog Box is enabled and you double click on a file with a file type of .DOC, WinZip will run one of two programs:
Smart DOC file handling avoids the overhead of loading a word processor such as Microsoft Word when viewing ASCII text files like "readme.doc". Note that Smart DOC file handling is used for double clicked files only; it is not used when you right click on a .DOC file and choose Open from the shortcut menu. In that case, WinZip uses the same program to open the document that Windows Explorer would; for most users, this will be Microsoft Word or another word processor.
Note: Pressing the Enter key performs the same action as double clicking. Single clicking also performs the same action as double clicking if you have: