SYSDIFF /INF Uses Decimal Format for REG_DWORD Values

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Article ID: 197161 - View products that this article applies to.
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When you create an .inf file from a SYSDIFF package, registry values in the package will be 0 after running the .inf file when the value in the .inf file is bigger than 2147483647.


When a registry entry contained in a SNAP file is written to an .inf file using the SYSDIFF /INF syntax, REG_DWORD values are written in decimal form. For example, 0x80000010 is written as 2147483664.

When Setupapi.dll runs this .inf file, it checks whether decimal REG_DWORD values exceed 2147483647 and writes 0 to the registry. SETUPAPI checks the value because all decimal values are supposed to be signed integers and, therefore, an overflow occurs.


To resolve this problem, obtain the latest service pack for Windows NT 4.0 or the individual software update. For information on obtaining the latest service pack, please go to:
  • Windows Service Pack Center -or-

  • 152734 how to obtain the latest windows nt 4.0 service pack
For information on obtaining the individual software update, contact Microsoft Product Support Services. For a complete list of Microsoft Product Support Services phone numbers and information on support costs, please go to the following address on the World Wide Web:


Microsoft has confirmed that this is a problem in Windows NT 4.0. This problem was first corrected in Windows NT version 4.0 Service Pack 5.


Article ID: 197161 - Last Review: November 2, 2013 - Revision: 3.0
Applies to
  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows NT Server 4.0 Standard Edition
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