You need to check the link from where you have downloaded.
At CodeProject, there is no such password protected projects. Everything is free for download and use.
If you have downloaded from CodeProject, then add a comment below the article notifying the author about it and also add a question at
Site Bugs Suggestions[
^] forum.
If you have download from any other website, then you need to contact either to the author or administrator of that website for help.