Use Compressed Archives in Windows 7 (ZIP, RAR, etc.)
HOWTO: Use a simple method of creating compressed archived files using the built-in Windows 7 compression utility. Files and folders can be added or removed at any time. We highly recommend using this for uploading mindump files on Windows 7 Forums. You can also use this method and other utilities for various other purposes. While no doubt many people are already familiar with this function, it is important to emphasize its value.