Int 1A Fn 6B01  - Snap.exe 3.2+ - "snap_free" - Deallocate Buffer In Snap  [N]

   AX = 6B01h
   STACK:  WORD    offset within SNAP data segment of previously allocated
           buffer

Return: STACK unchanged

Note:  this call is a NOP if the specified offset is 0000h

See Also: AX=6A01h