hi
here are some very good tutorials about this
Compress and Uncompress a Folder or File in Windows Vista Zip (Compress) Files and Folders
http://maximumpcguides.com/windows-vista/compress-and-uncompress-a-folder-or-file-in-windows-vista/
Right-click a file or folder with multiple files in it, point at Send To, then select Compressed (zipped) Folder.
Windows Vista will compress (zip) the file or folder and save the new zipped file in the same place as the original file.
Unzip (Uncompress) Files and Folders
You can unzip a file a few different ways.
Double-click the Zipped File
The easiest way to unzip a file is to double-click it. A window with the zipped files contents will open. You can click Extract all files or drag the files out of the window to the desired location (example: the desktop).
If you choose to click extract all files, the files will be extracted (unzipped) in the same location as the original file unless you specify a location in the Select a Destination and Extract Files box that appears when you choose to extract them.
Right-click the Zipped File
Right-click the zipped file and select Extract all. The Select a Destination and Extract Files window will open and let you choose if you want to save the files in the same location as the original zipped file or you can choose where you want to save the unzipped files by clicking browse and choosing a new location.
How to Open Zip Files on Vista
http://www.ehow.com/how_4963978_open-zip-files-vista.html
- Double-click on the zip folder with the zipped file inside. A window should pop up with the file or files inside.
- Click "Extract All Files" in the top options bar. The extraction wizard will pop up.
- Select where you want the files to be extracted to. By default, Vista will extract them to a folder that has the same name as the zip folder, in the same location. If a folder by that name does not exist, Vista will create one.
- Click "Extract."
- Your files will be uncompressed.