DiskExist( drive letter )

Tests for the existence of a drive.

DiskFree(drive-list [, format])

Finds the total available (unused) disk space on a group of drives.

DiskInfo ( request# )

Returns information on the specified disk drive.

DiskScan( request# )

Returns a list of drives.

DiskSize ( request# [, format])

Finds the total size of the specified drive(s).

DiskVolInfo( root-path, request# )

Returns information on a file system volume.

LogDisk( drive letter )

Logs (activates) a disk drive.

NetInfo( request code )

Determines network(s) installed.