Run an iterate over the listview items and remove items which they extension is .bin.
you can find .bin with this piece of code (pseudonymous):
for(int i=0;i<items_count;i++)
{
if(listview1.items[i].Substring(listview1.items[i].length-3,listview1.items[i].length)=="bin")
listview1.items.remove(i);
}
another pseudonymous :
if you want to generalize this , you should use file attribute class like this for a list view item :
string filePath = listview1.items[i];
// get file attributes
System.IO.FileAttributes fileAttributes = System.IO.File.GetAttributes(filePath);
Now you should check if fileAttributes is hidden , remove the correspond item.
Note : Next Time , Please send some of your code lines , it is better for problem salvation.