We just open-sourced DOS 4 (and found binaries of Multitasking DOS 4) https://www.hanselman.com/blog/open-sourcing-dos-4
Open Sourcing DOS 4

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@shanselman

@leyrer

Actually preferred DR/Novel Dos- that on V7 offered Networking and preemptive multitasking.

Would need to check if I used it under the hood of Win98 🤣