These constants are only available when your project has an explicit reference to the appropriate type library containing these constant definitions.
| Constant | Value | Description |
| Unknown | 0 | Drive type can't be determined. |
| Removable | 1 | Drive has removable media. This includes all floppy drives and many other varieties of storage devices. |
| Fixed | 2 | Drive has fixed (nonremovable) media. This includes all hard drives, including hard drives that are removable. |
| Remote | 3 | Network drives. This includes drives shared anywhere on a network. |
| CDROM | 4 | Drive is a CD-ROM. No distinction is made between read-only and read/write CD-ROM drives. |
| RAMDisk | 5 | Drive is a block of Random Access Memory (RAM) on the local computer that behaves like a disk drive. |