You can add a reference to the .ocx and use it in VB.NET.
Depending on what you want to accomplish, you are
probably going to have to use the DirectoryInfo class and
walk through it thereby creating the illusion of the old
control.
You can also use the FileOpen dialog depending on how
your app needs to work to find a specific file...but in
all likelyhood you are going to have to use the DI class,
coupled with the FileInfo class to get the details and
get down with some old school recursion. http://forums.devshed.com/t69842/s55a017e44a72e8ee2e25f871
e925fb0d.html