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AH = 81h BX = flag (00h freeze command subtree, 01h only specified process) CX = Process ID of head of command subtree
Return:
CF clear if successful CF set on error AX = error code (no such process)
Desc: Temporarily suspend a process or a process and all of its children
Note: If BX=0001h, this call will not return until the process is actually frozen, which may not be until after it unblocks from an I/O operation
See Also: AH=82h - AH=89h - AX=8E00h - INT 15/AX=101Dh
Category: DOS Kernel - Int 21h - E
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