asp.net profiles not working in global.asax?

Question

I have a class that returns parameters I've set in the profile properties in web.config. It works great on classes, but I cannot seem to make it work under the Global.asax?

Here is how I get the parameter:

public static string MissingPagePath
{
    get { return HttpContext.Current.Profile.GetPropertyValue("MissingPage").ToString(); }
}