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IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry
SUMMARY
This article describes how to disable and re-enable the Dr. Watson program for Windows.
MORE INFORMATION
WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
To Disable Dr. Watson

  1. Click Start, click Run, type regedit.exe in the Open box, and then click OK.
  2. Locate and click the following registry key:

      HKEY_LOCAL_MACHINESoftwareMicrosoftWindows NTCurrentVersion AeDebug
      NOTE: Steps three and four are optional, but they necessary if you want to restore the default use of Dr. Watson.
  3. Click the AeDebug key, and then click Export Registry File on the Registry menu.
  4. Enter a name and location for the saved registry file, and then click Save.
  5. Delete the AeDebug key.

Registry entries for debugger programs are located in the AeDebug key in Windows. The Dr. Watson program is installed by default in Windows, and is configured to run when an application error occurs (with a data value of 1 for the Auto value). The default values are:

Value Name = Auto
Type = String (REG_SZ)
Data Value = 1 or 0. (Default is 1)

Value Name = Debugger
Type = String (REG_SZ)
Data Value = drwtsn32 -p %ld -e %ld -g

NOTE: This data value (drwtsn32 -p %ld -e %ld -g) is specific to Dr. Watson. Alternative debuggers will have their own values and parameters.