Usually, the software manufacturer compresses updates so that they take up less space on the server and transfer faster. Many updates are packaged in a single program file (.exe extension) that you decompress by double-clicking the file in the Windows Explorer. If an update does not decompress automatically, you must decompress it manually using a program such as WinZip before you can install it.
Sometimes update files are zipped. You can tell when an update is zipped because the file name has a .zip extension. You need a utility such as WinZip to unzip the update before installing it.
After you unzip or decompress an update, you can see the files contained in the update. Usually, the manufacturer places installation instructions in a text file called Readme.txt. If you don't find a Readme.txt file, check any other file that has a .txt or .doc extension for installation instructions.
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