Permissions

Concerning the following folders:

\\Server\Share\Folder1\FolderA
\\Server\Share\Folder1\FolderB
\\Server\Share\Folder1\FolderC
\\Server\Share\Folder1\FolderD

Is it possible with permissions in Windows Server 2003 to have a user only see FolderA and FolderB but not FolderC or FolderD when browsing contents of Folder1? I can easily prevent a user from opening FolderC and D, but I don’t even want them to be able to see they exist.