INT 21 - DOS 2+ internal - CREATE CHILD PSPsee Program Segment Prefix AH = 55h DX = segment at which to create new PSPsee Program Segment Prefix SI = (DOS 3.0+) value to place in memory size field at DX:[0002h] Return: AL destroyed Notes: creates a "child" PSPsee Program Segment Prefix rather than making an exact copy of the current PSPsee Program Segment Prefix; the new PSPsee Program Segment Prefix's parent pointer is set to the current PSPsee Program Segment Prefix and the reference count for each inherited file is incremented (DOS 2.0+) sets current PSPsee Program Segment Prefix to DX (DOS 3.0+) marks "no inherit" file handles as closed in child PSPsee Program Segment Prefix this function is implemented using the same code as AH=26h, so unlike other DOS 2+ functions, it does not return status in CF, instead returning status in AL as DOS 1.x functions do (but it never puts an explicit return value in AL) SeeAlso: AH=26h,AH=50h