>Hi All,
>
>Can anyone tell me an elagent way of determining the cluster size
>of a specified drive (e.g. C:, D:, E: etc) reliably for drives which
>may be larger than 2GB. The GetDiskFreeSpace API function returns
>unreliable results (e.g. my C: drive is actually 4K clusters but it
>returns 32K!!!).
>
>I am using the cluster size to determine disk space requirements prior
>to backing up some DBF/DBC files and would like it to be correct.
>
>I can fudge my way around it by creating a file with a size of 1 byte and
>record the free space before and after to determine the cluster size, but I
>*HATE* this approach. :=((
>
>There must be a reliable way to do it with an API call. Can anyone help please?
>
>Many thanks,
>
>
>Paul Parrish

Paul,
If just free space you could use diskspace(). There is GetDisFreeSpaceEx() now but I never used it (needs 64 bits integer).
Cetin