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  2. "HTTP 500 - Internal server error" error message when you try to open Webs while the IUSR account or the IWAM account is turned off

"HTTP 500 - Internal server error" error message when you try to open Webs while the IUSR account or the IWAM account is turned off

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Symptoms

If you try to open a Web site on a Microsoft Internet Information Services (IIS) Web server by using the FrontPage client while either the IUSR_computer or IWAM_computer account is turned off, you may receive error messages in the FrontPage client indicating the server extensions are not installed. Or, you may receive following error message:
HTTP 500 - Internal server error
Additionally, the Event Viewer logs on your Web server may contain error messages similar to the following:
  • If IUSR_computer is turned off:
    • In your Application log:
      Event Type:     Error
Event Source:   IISADMIN
Event Category: None
Event ID:       102
Date:           1/1/2002
Time:           12:00:00 PM
User:           N/A
Computer:       COMPUTER
Description:

IISADMIN service found that account IUSR_<COMPUTER> is disabled.
Some IIS functions can fail for this reason.
    • In your System Log:
      Event Type:     Warning
Event Source:   W3SVC
Event Category: None
Event ID:       100
Date:           1/1/2002
Time:           12:00:00 PM
User:           N/A
Computer:       COMPUTER
Description:

The server was unable to log on the Windows NT account
'IUSR_<COMPUTER>' due to the following error:
Logon failure: account currently disabled.
The data is the error code.

Data:           0000: 33 05 00 00
    • In your Security Log:
      Event Type:     Failure Audit
Event Source:   Security
Event Category: Account Logon
Event ID:       681
Date:           1/1/2002
Time:           12:00:00 PM
User:           NT AUTHORITY\SYSTEM
Computer:       COMPUTER
Description:

The logon to account: IUSR_<COMPUTER>
  by: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
  from workstation: COMPUTER
  failed. The error code was: 3221225586
      -and- 
      Event Type:     Failure Audit
Event Source:   Security
Event Category: Logon/Logoff
Event ID:       531
Date:           1/1/2002
Time:           12:00:00 PM
User:           NT AUTHORITY\SYSTEM
Computer:       COMPUTER
Description:

Logon Failure:
  Reason: Account currently disabled
  User Name: IUSR_<COMPUTER>
  Domain: COMPUTER
  Logon Type: 3
  Logon Process: IIS
  Authentication Package: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
  Workstation Name: COMPUTER
  • If IWAM_computer is turned off:
    • In your Application log:
      Event Type:     Error
Event Source:   IISADMIN
Event Category: None
Event ID:       102
Date:           1/1/2002
Time:           12:00:00 PM
User:           N/A
Computer:       COMPUTER
Description:

IISADMIN service found that account IWAM_<COMPUTER> is disabled.
Some IIS functions can fail for this reason.
    • In your System Log:
      Event Type:     Error
Event Source:   DCOM
Event Category: None
Event ID:       10004
Date:           1/1/2002
Time:           12:00:00 PM
User:           N/A
Computer:       COMPUTER
Description:

DCOM got error "Logon failure: account currently disabled." and
was unable to log on .\IWAM_<COMPUTER> in order to run the server:
{3D14228D-FBE1-11D0-995D-00C04FD919C1}
      -and- 
      Event Type:     Warning
Event Source:   W3SVC
Event Category: None
Event ID:       36
Date:           1/1/2002
Time:           12:00:00 PM
User:           N/A
Computer:       COMPUTER
Description:

The server failed to load application '/LM/W3SVC/1/ROOT'.
The error was 'The server process could not be started because the
configured identity is incorrect. Check the username and password.'
    • In your Security Log:
      Event Type:     Failure Audit
Event Source:   Security
Event Category: Account Logon
Event ID:       681
Date:           1/1/2002
Time:           12:00:00 PM
User:           NT AUTHORITY\SYSTEM
Computer:       COMPUTER
Description:

The logon to account: IWAM_<COMPUTER>
  by: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
  from workstation: COMPUTER
  failed. The error code was: 3221225586
      -and- 
      Event Type:     Failure Audit
Event Source:   Security
Event Category: Logon/Logoff
Event ID:       531
Date:           1/1/2002
Time:           12:00:00 PM
User:           NT AUTHORITY\SYSTEM
Computer:       COMPUTER
Description:

Logon Failure:
  Reason: Account currently disabled
  User Name: IWAM_<COMPUTER>
  Domain: COMPUTER
  Logon Type: 3
  Logon Process: NtLmSsp 
  Authentication Package: NTLM
  Workstation Name: COMPUTER

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Cause

The IUSR_computer and IWAM_computer accounts must be turned on for IIS to function correctly.

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Resolution

To resolve this issue, follow these steps:
  1. Log on to your Web server as an administrator.
  2. Start the User Manager for Domains program on Microsoft Windows NT 4.0 or the Computer Management snap-in on Microsoft Windows 2000 or Microsoft Windows XP.
  3. View the properties for the IUSR_computer or IWAM_computer accounts.
  4. Click to clear the Account disabled check box.

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More information

For additional information , click the article numbers below to view the articles in the Microsoft Knowledge Base:
297989 PRB: Configured Identity Is Incorrect for IWAM Account
297519 Server Application Error Message: 'The server failed to load application'

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Keywords: KB321448, kbprb, kbopenfile, kberrmsg, kbconfig, kbaccounts

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Article Info
Article ID : 321448
Revision : 4
Created on : 2/21/2007
Published on : 2/21/2007
Exists online : False
Views : 311