%OvInstallDir%
%OvDataDir%
%OvShareDir%
%SYSTEMROOT%\system32
In addition, these groups must either be given the Bypass Traverse Checking privilege or they must also have Execute access to all of the parent directories of these directories. By default, Windows 2000 installations give this type of access to "Everyone," so you should only need to make changes like this if you modified your file system security from the default settings.
On FAT file systems or partitions, there is no security to set.