ASP.NET Friendly Url problems

Hello,

I have a problem which is urgent to solve. I have installed nuget package of asp.net friendly urls, however it does not working properly. The package installed also these lines of code to RouteConfig.cs:

var settings = new FriendlyUrlSettings();

settings.AutoRedirectMode = RedirectMode.Permanent;

routes.EnableFriendlyUrls(settings);

For some pages it works fine, for some other it doesn't work at all. For example: I have page users.aspx which redirect to users/ as it should be. On the other hand I have page ProjectBrowse.aspx and it cannot find it when I type ProjectBrowse. I tried to set routes.MapPageRoute above the code block that package installed but the problem persists.

Thank you in advance.