SCORM 2004 player for .NET VB

I have a vb .net web app that runs elearning using a SCORM 1.2 api. I need a royalty free solution to launch and record progress for SCORM 2004 files.? I use VB .NET for my back end so that is what I prefer - unless you are reselling an existing C library. ## Deliverables i am seeking core functionality - not full admin features. Should be able to launch a scorm 2004 course, run, bookmark, save score etc.. Ok to put an hourly consulting fee on questions or support after demonstrating functionality.