Digital Research's Multiuser DOS is a true multi-tasking, multi-user operating system with a DOS like environment. It is based on Concurrent CP/M, and Concurrent DOS.
Several OEM vendors later created further enhanced versions such as Real/32
Version 5.0 is copy protected. It requires a copy protection dongle in order to run. No unprotect is known to exist. Version 5.10 does not have this limitation.
Download name | Version | Language | Architecture | File size | Downloads |
---|---|---|---|---|---|
Digital Research Multiuser DOS 5.00 (5.25-1.2mb) | 5.00 | English | 536.3KB | 2 | |
Digital Research Multiuser DOS 5.10 (3.5-1.44mb) | 5.10 | English | 721.43KB | 4 | |
Digital Research Multiuser DOS 5.10 (3.5-1.44mb) (alt) | 5.10 | English | 772.17KB | 1 | |
Digital Research Multiuser DOS 5.11 [German] (3.5-720k) | 5.11 | German | 775.64KB | 1 |