makecab only zip a file to zip file, and I want to zip folder to a file, and unzip the file to a folder. like manual operation in windows explorer. is there builtin tool for zip/unzip a folder. thanks.

Yeah. Right-click on the folder or file, select Send to and pick Compressed (zipped) folder. To unzip it, right-click on the zipped file, select Extract All... You should have asked this in the User Interface forum though (http://social.technet.microsoft.com/Forums/en/w7itproui/) because it has nothing to do with networking.