Following are the MS-DOS directory-management functions:
| Function | Description | Version |
| 39h | Create Directory | 2.0 |
| 3Ah | Remove Directory | 2.0 |
| 3Bh | Change Current Directory | 2.0 |
| 41h | Delete File | 2.0 |
| 47h | Get Current Directory | 2.0 |
| 4Eh | Find First File | 2.0 |
| 4Fh | Find Next File | 2.0 |
| 56h | Rename File | 2.0 |