qa.hlp (Table of Contents; Topic list)
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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
Int 21H Function 49H
   Summary  Notes  Example  Back
──────────────────────────────────────────────────────────────────────────────
 
  Description:  Release Memory Block
 
  Releases a memory block and makes it available for use by other programs.
 
  Input                                Output
  ═════════════════════════            ════════════════════════
  AH=49H                               If function successful
  ES=segment of block to be            Carry flag=clear
     released                          If function unsuccessful
                                       Carry flag=set
                                       AX=error code
                                    -♦-