Please have a look into the below URL may help to resolve your issue:
https://www-secure.symantec.com/connect/forums/freeextractor-error#comment-3733881
http://answers.microsoft.com/en-us/windows/forum/windows_7-windows_programs/free-extractor-error-could-not-read-sfx-info/e18761f2-2742-48ba-b163-a4790df28006