If anyone got the error mesage saying : "The application failed to start because the application configuration is incorrect. Reinstalling the blah blah..."
The solution is here :
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download the file and install it .. I didn't even need to reboot .. the problem is totally fixed.
@wurstbrot123 : Please add this to the first post (as a known bug ,FAQ or any thing u like) .. I almost lost hope before I find the solution ( ++this was not the only application making this problem)
@wurstbrot123 : again :) .. U r awesome ;) .. You and all guys who participated in this great project