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Resolved Changing the IRPStackSize

Discussion in 'Windows 10' started by aussiejohn, 2021/03/22.

  1. 2021/03/22
    aussiejohn

    aussiejohn Well-Known Member Thread Starter

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    Hi guys, When changing the ISPStacksize for a 64 bit computer should I make the new entry DWORD as in 32 bit computers or QWORD 64 bit?
     
  2. 2021/03/23
    TonyT

    TonyT SuperGeek Staff

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  4. 2021/03/23
    aussiejohn

    aussiejohn Well-Known Member Thread Starter

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  5. 2021/03/24
    TonyT

    TonyT SuperGeek Staff

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    Use DWORD not QWORD.

    The reason one application may create a DWORD (32-bit) value and another a QWORD (64-bit) value rests not on whether it's running from a 32-bit or 64-bit version of Windows, but instead solely on the bit length of the value. This means that you can have both types of registry values on both 32-bit and 64-bit operating systems.
    In this context, a "word" means 16 bits. DWORD, then, means "double-word," or 32 bits (16 X 2). Following this logic, QWORD means "quad-word," or 64 bits (16 X 4).
    An application will create the proper registry value that it needs in order to comply with these bit length rules.
     
    Christer and Steve R Jones like this.
  6. 2021/03/24
    aussiejohn

    aussiejohn Well-Known Member Thread Starter

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    Thanks Tony this is a very informative answer just what I was looking for ! :)
     

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