1 class to multiple library assets - error 1203

I am trying to use one class for multiple library assests.
It only seems to work when I have 0 arguments for the constructor.
I work around it by adding a routine that gets called when its created and acts like a constructor.

The Adobe description of this error is:
**1203 No default constructor found in base class %s. **
You must explicitly call the constructor of the base class with a super() statement if it has 1 or more required arguments.

I think its say that I must have 0 arguments in my constructor and then call a seperate pseudo-constructor if I want more arguments. (which is what I am doing as a work around but dont want to.)

This is similar to the previous post here but does not answer my question. http://www.kirupa.com/forum/showthread.php?t=275077

In general I am doing this but with arguments in the constructor.
http://blog.multimediacollege.be/2008/07/attaching-the-same-class-to-multiple-library-assets-in-as3/comment-page-1/#comment-3214

If any one knows a solution that is more elegant than running a pseudo constructor then I would be stoked to hear it.

Thanks for taking the time to consider my question. As always much appreciated.