On the CMMS soapbox...
Preventative and Corrective Maintenance: How to get any Maintenance Management Software to work for you, not against you!
Why use a DOS based program in the twenty-first century?
Before we answer that, ask yourself how many old Windows programs can still run on the latest versions of all flavors of Windows?
Could you even un-install one after it thrashed your computer? A standard DOS program is the most compatible type of software available, and probably will be for some time.
There are just too many critical applications in business and industry to ever succeed in the operating system marketplace without supporting standard DOS software.
Industrial maintenance is a long-term business. Maintenance people don't want to change maintenance software every other year.