Unzip Game On OSX breaks the .app

So i am making an auto updated game. On windows is working 100% and i used (SharpZipLib, Ionic.Zip) both worked great. but on mac when i extract the (.app Unity) the file can't be launched.

I mean the extraction by script somehow corrupts the (.app Unity) updater. If i extract it manually (click on it and uncompressed it) the app works fine.

I also try exacting it with the Terminal* by using this command : unzip updater.zip

And even then the file that is extracted is unusable.

Had anyone faced this problem before?

P.S.: Because i am about to give app on the auto updated on mac.(at least this method) And its a shame i did make and work on windows and the only problem on mac is that can't unzip properly the apps.

• = in the actual terminal not in Unity.