You will get a dropdown list box with all the files and folders in C: drive.
Have you ever thought about incorporating this kind of a behavior into your application...
There is an API which does this... ( Microsoft was generous enough to create one and share it ). :)
The API is SHAutoComplete.
All you should have is an edit box. Get the handle to the edit box and pass it to this function. You will get a drop down
list box for the path that you are typing in the edit box.
Cool isn't it. :)
NOTE: Don't forget to call CoInitialize before using this function and of course CoUninitialize
Do look up this API in MSDN. You will find interesting options.