In the BROWSEINFO struct used in the call to SHBrowseForFolder, please add this flag to member ulFlags: BIF_EDITBOX. Alternately, BIF_USENEWUI includes that, as well as other capabilities. For completeness's sake, see BROWSEINFO and SHBrowseForFolder, though I'm sure you probably know where to find them already.
The reason is that many times it's much faster to copy the location of a folder from explorer, spacemonger, or whatever than to go hunting around for the file, especially if it's nested anywhere in a profile folder.
It's fully compatible with all 32-bit versions of windows, although it won't actually do anything on the oldest ones.
(PS, if a mod could move this to suggestions, I created it in the wrong forum.)