A hard one...

I need to know how I can display all files and directorys in a treeview control.. Can anyone help me out??

you could just use explorer dialog box...

http://www.vb-world.net/articles/shfileop/

This wasn't quite what I was looking for... I need to know how to display a drive's content.. But thanks anyway!

you can use a DriveListBox, DirListBox, and FileListBox

if this isnt what you wanted, Email me and I will send you a rough sample project I made.
it uses an invisible file list box and reads the contents of it....

Check out the last zip file on this page:

http://www.mvps.org/btmtz/treeview/listing.htm