Grid control question

I have VB5.0  I designed an application to update several access databases.  I used a grid control to bring the queries from access into vb.  It works fine on my computer.,but when I try to use the program on another computer, I get an runtime error that says grid.ocx is not registered.  How do I resolve this problem.  I thought when I create an exe, it should run on any computer without installing extra files.  Plse let me know what I need to do!

Thanks