Hi level: It allowed certain DOS core image library programs to execute in an MVS environment. It used SVC intercept to make it all work.

Last time I used it, was 1981, if I remember correctly, for a restaurant chain that had been trying to migrate from DOS to MVS. So part of their payroll was running under DOS, another part was under DUO (-360), and the rest was native MVS.

I can't remember if that was about the time of UCC-2 or before. Definitely before CA.

Anyhow, I don't know if CA kept the product up or not. I'm suspecting they didn't.

Regards,
Steve Thompson


On 3/29/22 14:21, Carl Edwards wrote:
Anyone know anything about CA-DUO? Is it still available, supported?

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