Registry Settings for Event Detail in the Dcpromoui.log File

ID: Q221254

The information in this article applies to:

Microsoft Windows 2000 Advanced Server
Microsoft Windows 2000 Datacenter Server
Microsoft Windows 2000 Server

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

Dcpromo builds two log files (Dcpromoui.Log and Dcpromo.log) in the %SystemRoot%\Debug folder on Windows 2000-based servers. Both files are useful for troubleshooting problems with the promotion or demotion of Active Directory servers.

This article describes registry settings that control the log detail in the Dcpromoui.log file.

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).

The Dcpromoui.log file captures status information on the promotion or demotion of an Active Directory computer from start to finish, including the capture of user input for the role the server will play in the forest.

Logging detail in the Dcpromoui.log file is controlled by the DCPROMOUI setting. To increase or decrease the logging detail captured, set the bit mask for the DCPROMOUI registry entry using the bit mask definitions shown below. Modify the data value for the DCPROMOUI (REG_DWORD) value in the following registry key:

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\AdminDebug

The DCPROMOUI value is a bit mask. The high word is a mask of logging levels:


   0x0002   Trace constructor and destructor calls
   0x0004   Trace AddRef and Release calls
   0x0008   Trace function entry and exit
   0x0010   Output trace messages
   0x0020   Output log header with build and time stamp
   0x0040   capture the call stack for each invocation of
            operator new (chk build only)

The low word is a mask of output options:


   0x0001   Output to file in the %SystemRoot%\Debug folder
   0x0002   Output to debugger (OutputDebugString)

To enable maximum logging detail to the %SystemRoot%\Debug\Dcpromoui.log file and debugger, set the DCPROMOUI bitmask to 0xFF0003. (Enter "FF0003" and not the leading "0x" characters.)

The current log mask setting can be displayed by searching for the "logging mask" string in the Dcpromoui.log file (typically the fourth line from the top of the file). A DCPROMOUI setting of 0xFF0003 is displayed as logging mask 00FF in the Dcpromoui.log file.

Additional query words:

Keywords : kbenv
Version : WINDOWS:2000
Platform : WINDOWS
Issue type : kbinfo