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Windows Server



    

Determining the product option of a Windows NT setup    

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Determining the product option of a Windows NT setup



Apr
22

Determining the product option of a Windows NT setup

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ProductOptions\ProductType

 

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

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

ServerNT = Member Server = Windows NT/2000/2003 Server Stand-Alone

 

 

HKLM > SYSTEM > CCS > Services > NTDS > Parameters

 

http://support.microsoft.com/kb/152078

Determining the product option of a Windows NT setup

 

 

 

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.

 

 

Article ID: 152078

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

 

Keywords:

KB152078

 

http://support.microsoft.com/kb/152078

 

NOTE:

If you use this registry and change the settings on a running DC and Reboot; after changing it from a Domain Controller to a Member Server, then the NTDS.DIT database becomes inactive and the old security comes into picture where in the LSA is used to authenticate user. The computer's windows Operating System will now use LSA to authenticate users against.

So, this key is mostly used when you cannot login/boot into the Normal mode in Windows but you can login into DSRM Mode; and you are ready to scrap the NTDS.DIT database (because you have a valid system state backup or some other means to restore the Active Directory and other services running on the Server System). The you should use this key.

You will mostly find its usage in LSASS 0x000002e1.

 

So suppose you change the value of this registry key from "LanmanNT" to "ServerNT", then after you reboot in normal mode the system will use LSA to authenticate you. So make sure you remember the password of the Administrator Account just before when you promoted it to a Domain Controller.

This after the promotion becomes the Administrator of the DSRM Mode.

 

Thanks



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ebhakt
Author Bio          ★★★★★

Author Name:         ebhakt
Author Location:    India
Author Rank:          Writer
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