qa.hlp (Table of Contents; Topic list)
Index: N-O
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  │A│B│C│D│E│F│G│H│I│J-K│L│M│N-O│P-Q│R│S│T│U│V-Z│
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  Open File                           Int. 21H, Funct. 0FH
  Open File                           Int. 21H, Funct. 3DH
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