Compatibility: DPMI 1.0+
Expects: AX    0d01H
SI:DI handle of shared memory block as obtained via INT 31H 0d00H
Returns: CF    NC (clear) if successful; else AX = DPMI Error Code
Info: This frees an a named block of memory that was allocated via

It actually decrements the per-VM use-count and the global
use-count.  The allocated memory is freed only when the global
use-count has been decremented to 0.

See Also: DPMI API
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INT 31H 0d01H: Free Shared Memory