Cannot Connect to FTP Site Anonymously When FTP Service Is Installed Alone (306450)

We strongly recommend that all users upgrade to Microsoft Internet Information Services (IIS) version 6.0 running on Microsoft Windows Server 2003. IIS 6.0 significantly increases Web infrastructure security. For more information about IIS security-related topics, visit the following Microsoft Web site:

http://www.microsoft.com/technet/security/prodtech/IIS.mspx

SYMPTOMS

When the File Transfer Protocol (FTP) server component of Internet Information Server (IIS) is installed without the World Wide Web server component, users may receive the following error message when they attempt to log on with the Anonymous account:

The Event Viewer displays the following warning:

Event ID: 100
Source: MSFTPSVC
Description: The server was unable to logon the Windows NT account
'IUSR_SERVERNAME' due to the following error: The specified module
could not be found. The data is the error code.

RESOLUTION

Install or add the World Wide Web server component for IIS along with the FTP server component. If you are adding the World Wide Web server component after you install the FTP server component, ensure that you reapply the latest service pack after you add the World Wide Web server component.

WORKAROUND

To work around this problem, disable Automatic Password Synchronization on the FTP site and reset the passwords for the IUSR_SERVERNAME account. To do this, follow these steps:

Open the Internet Service Manager. To do this, click Programs on the Start menu, click Programs, click Windows NT 4.0 Option Pack, and then click Microsoft Internet Infomation Server.
Expand the Internet Information Server folder, then expand SERVERNAME.
Right-click the default FTP site and click Properties.
On the Security Accounts tab, clear Enable Automatic Password Synchronization.
Change the password to one that you can remember and click OK.
Open User Manager for Domains. To do this, click Programs on the Start menu, then click Administrative Tools (Common).
Double-click the IUSR_SERVERNAME account.
Change the Password and Confirm Password fields to match the password that you set in step 5.
Ensure that User Cannot Change Password and Password Never Expires are both selected, then click OK.

NOTE: If you reenable Automatic Password Synchronization, FTP again stops working.