Microsoft KB Archive/152078

= Determining the product option of a Windows NT setup =

Article ID: 152078

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Server 4.0, Terminal Server Edition
 * Microsoft Windows NT Server 4.0 Enterprise Edition
 * Microsoft Windows NT Advanced Server 3.1
 * Microsoft Windows NT Server 3.5
 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Workstation 3.5
 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Workstation 4.0 Developer Edition

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This article was previously published under Q152078



IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information about how to do this, view the "Restoring the Registry" Help topic in Regedit.exe or the "Restoring a Registry Key" Help topic in Regedt32.exe.



SUMMARY
In some cases you may not be able to determine which option Windows NT is running in through the normal UI or the NET ACCOUNTS command.

Windows NT has the following possible options:

Windows NT Workstation

Windows NT Server

Windows NT primary domain controller

Windows NT backup domain controller

Through the use of REGEDT32.EXE you can verify the role of the installed Windows NT.



MORE INFORMATION
WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).

Using REGEDT32.EXE, find the following registry entry.

  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ProductOptions\ ProductType

ProductType can be one of the following:

WinNT = Windows NT workstation, Windows XP/2000 Professional, Windows XP Home

LanmanNT = Windows NT/2000/2003 Server domain controller (primary or backup)

ServerNT = Windows NT/2000/2003 Server stand-alone

On Special Editions of Windows NT the ProductSuite key exists and can be the following values.

Windows 2003
 * Terminal Server Enterprise
 * Terminal Server
 * Small Business
 * Enterprise DataCenter
 * Terminal Server DataCenter
 * Enterprise

Windows XP
 * Personal

Windows 2000
 * Small Business
 * Enterprise Terminal Server
 * DataCenter

Windows NT
 * Terminal Server
 * Enterprise

Terminal Server = Windows NT Server 4.0 Terminal Server Edition

Enterprise = Windows NT Server 4.0 Enterprise Edition

Do not change any of this information under any circumstances. Changes to these values may result in the failure of the Windows NT operating system.

Additional query words: prodnt 3.51 3.50 4.0

Keywords: KB152078

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