INT 21 - European MSDOS 4.0 - "RELEASEMEM" - FREE SHARED MEMORY AREA
AX = 8402h
BX = handle (segment address of shared memory object)
Return: CF clear if successful
CF set on error
AX = error code (no such name)
Desc:   indicate that the specified area of shared memory will no longer be
used by the caller
Note:   the reference count is decremented and the shared memory area is
deallocated if the new reference count is zero
SeeAlso: AX=8401h,INT 15/AX=DE19h

See also: 218400

218402 - European MSDOS 4.0 - "RELEASEMEM" - FREE SHARED MEMORY AREA