Quote Originally Posted by nanocosm View Post

However could you tell me please which WinRAR version do you use? What are the optiosn? Store, Deflate? Which compression strenght?
This is for everyone:

You must use a WinRar version 4.01 or LESS. Newer versions will corrupt the zip file (as far as iGo is concerned..it is very sensitive to compression...all versions of iGo are).
Do not (ever) extract an iGo zip file. Work only from within WinRar (example: drag zip igo zip file into WinRar window, navigate through the file structure to get to the file you want to edit, click file, if asked, open in plain text editor like notepad, notepad +, Notepad++, etc, make your edits, save file, when WinRar prompts if you want to update the archive, click yes, close WinRar.
You can examine an iGo zip file, in any zip utility you like, but never unzip...it will not zip back up in any form that iGo will be happy with.
Some will tell you there are other ways and other utilities that work, and they may be correct, but the way I described has worked flawlessly for me for many years, so I see no reason to experiment with other ways.
If somebody else wants to post another way guaranteed and tested, go ahead and do so.