JSI Tip 3728. Freeware command line utility extracts files from a .CAB.

Extract.exe: Extract Cabinet is a command line tool that extracts individual files from compressed cabinet (.cab) files.

"Using cabinet files is a highly efficient method of compression and distribution that has been used by Microsoft for many years. It is now available to anyone who needs to compress and distribute multiple files.

The cabinet file format is a nonproprietary format based on Lempel-Ziv compression. At the heart of this format is the MakeCAB compression tool, a loss-less data compression tool included with Windows 2000 that provides efficient compression for setup programs and Internet applications. By using MakeCAB, you can store multiple files in a single cabinet file and carry compression across files.

NOTE: Using Windows 2000, and Windows 98 with Microsoft Internet Explorer 4 and later, you can use Windows Explorer to view and extract files from .cab files. Extract, though, is still useful for working with .cab files from the command line."