I will post a question that you may think it is crazy, but if you are a regular user of usenet's alt.binaries.w.ibm-pc.0-day news group then you will understand the reason of my question. However it doesn't matter if you know what I am talking or not; just understand the following - I have a main folder which has many subfolders; each subfolder contains one or more zip files; such zip files when unzipped will extract a rar file; such rar file has the final files I want to access. How can I automate the unzipping and unraring processes ? My operating system is Windows XP. Thanks in advance.