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Debug user logons in Windows 2003

Description: how to enable user logon debug
Resolution: [HKEY_LOCAL_MACHINESoftwareMicrosoftWindows NTCurrentVersionWinlogon]
Entry: UserEnvDebugLevel
Type: REG_DWORD
Value data: 10002 (Hexadecimal)
UserEnvDebugLevel can have the following values:
NONE 0x00000000
NORMAL 0x00000001
VERBOSE 0x00000002
LOGFILE 0x00010000
DEBUGGER 0x00020000

Saved to – %Systemroot%DebugUserModeUserenv.log
URL Reference: http://support.microsoft.com/kb/221833/en-us

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