Using the venerable DOS operating system provides PC-Doctor for DOS with several distinct advantages. The diagnostics and system information tools have direct access to hardware devices not available in Windows. The operating system and diagnostics have such a small footprint that they both fit on a single diskette.
Powerful scripting capabilities make PC-Doctor for DOS a popular choice for high-volume PC manufacturing and service organizations. PC-Doctor's Diagnostic API (DAPI) makes it easy to add new third-party test modules to increase test coverage.
View the complete list of tests available in DOS.
PC-Doctor for DOS can test PCs via a bootable diskette, CD, or thumb drive (flash disk) when a system cannot boot to the installed operating system, even without a hard drive or other storage device. These products are used by service technicians, service and repair centers, PC and PC-type manufacturers, and end users. It includes an intuitive interface and can also be operated from a command line.
PC-Doctor Service Center includes a version of PC-Doctor for DOS.
For alternative diagnostic software for testing unbootable systems, you should explore BootPath Diagnostics.