| Name | Size | Date | |
| DOORBILL.EXE | 67310 | 3/3/1991 | |
| DOORBILL.DOC | 22128 | 2/22/1991 | |
| DOORBILL | 249 | 1/13/1991 | |
| COMLOCK.EXE | 10748 | 10/6/1990 | |
| DOORBILL.CFG | 52 | 7/22/1990 | |
| HISTORY.TXT | 11269 | 2/25/1991 | |
| DBUTIL.EXE | 41972 | 2/11/1991 | |
| MODEM.SET | 1620 | 10/7/1990 | |
| GT-DBILL.HLP | 7649 | 3/4/1991 |