How to Load missing Control classes

Hii,

I am newbie in Visual basic enviornment,and i m trying to load one of sample ode in visual basic 6.0 but i am facinf problems
"Class MSComctlLib.ImageList of control ImageList1 was not a loaded control class."
"Class BDaqOcxLibCtl.InstantDiCtrlof control ImageList1 was not a loaded control class."

how i can get rid from this problem,please let me know.
Thank you.