Count Duplicate Items In ListBox in vb6

Hey every one,
I have a 2 list boxes ,command button
My 1st listbox contains duplicated items
so what i want is that once i press the command button,the duplicated items is counted in the 2nd listbox
for example :
book 4
car 2
door 5
& so on
so plz if anyone can has any idea ,plz help

Break it down into steps. If something doesn't work, post the code.

Loop thru one listbox, into a SORTED listbox, to be able to count items

Try a flexgrid for more than one column. Better than concatenating results, which you'd have to do

Thank you for your help :)