Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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▀ After the executing program's PSP is copied into the new segment, the
  memory size information in the new PSP is updated appropriately and the
  current contents of the termination (Int 22H), CTRL+C handler (Int 23H),
  and critical-error handler (Int 24H) vectors are saved starting at off-
  set 0AH.
 
▀ This function does not load another program or in itself cause one to
  be executed.
 
▀ Int 21H Function 4BH (EXEC), which can be used to load and execute pro-
  grams or overlays in either .COM or .EXE format, should be used in pre-
  ference to this function.
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