Karaoke Software

I am looking for a software that well, as the title says; to use it as a normal karaoke player. There are many karaoke player around as shareware or freeware. I just need one for my self to be the rightful owner. My requirement for the software are pretty much like the ones available, i.e.: 1. Must have two selectable 'always on top' windows and support dual screen, so as to allow one big screen as the video player and the other smaller screen as the song selector. 2. Be able to create database of the songs (this must be linked to the song selector so that it can be search by artists, titles, keywords, different categories, will discuss further). 3. This software should have two versions, one for home and another for business. The business should have the control over the rooms, timings, members, and billing capabilities. 4. Ways of registering the product. 5. As I will need this product GUI to be in a specific country's language, I need it to be translated at the later part (finishing); I will do the translation, you can just help me to put it into the GUI. Just the GUI is enough, esp. the song selector and billing software. 6. Running on Windows OS, (better if can fully support Win Vista or 7) If you want to have an idea of my request, one of the softwares would be Unify Karaoke. But they have many features that I don't need. I don't mind if this software was being used already as long as this 'new' piece will be legally and rightfully mine to distribute. The mentioned above would be the basic requirements of this project. Further info would be discussed with the capable programmer.