Microsoft Word 97 established the word processing application as a market leader. During an unprecedented period of popularity in personal computers, Microsoft Word quickly found itself in almost all businesses and many homes, establishing itself as the de facto standard for creating written documents. As part of the Office 1997 software package, users were able to use the program to create simple documents and quickly became familiar with the toolbar and menu driven user interface which remained consistent through later releases up to 2003.
The DOC file extension has become so synonymous with word processed files that it is arguably the most widely known file extension. Used for files created by Microsoft Word for DOS through to Word 2003, the format has seen a huge number of improvements but was superseded with the release of Microsoft Word 2007. Many users of Word 2007 continue to use the old DOC format to ensure compatibility with other users from different businesses.
The .pub file extension is the file extension used by the Microsoft Publisher application which forms part of the Microsoft Office product set. A .pub file can contain images, graphics, formatted text and other objects. The file type is typically used for amateur publishing with professionals opting for higher end file types.
Microsoft Publisher files may contain various elements including images, graphics, formatted text and objects. The file extension has undergone a number of revisions, from version 3.0 for Windows 95 up to the current version 14 used by Microsoft Publisher 2010. A major disadvantage of the file type is its lack of portability. The file type cannot be opened by most other applications, including other Microsoft Office applications such as Microsoft Word. As such it is considered an inappropriate file type for sharing with others. However, it is noted that it is possible to view .pub files using the trial version of Microsoft Publisher.