Article ID: 193921 - View products that this article applies to.
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After you upgrade to Windows NT 4.0 Service Pack 4 (SP4) and view the Operators tab on an SMTP, IMAP, or POP3 virtual server, the virtual server is no longer viewable through Microsoft Management Console (MMC), even by the administrator.
A change in the Internet Information Server (IIS) ADSI provider for the metabase causes this problem. When the SMTP, IMAP, or POP3 snap-ins save the metabase ACL for the Operators tab, a bad ACL (that does not include the administrator on the local computer) is written to the metabase. No error is returned by the ADSI provider, therefore the snap-ins commit the change to the metabase.
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/152734/EN-US/ )How to Obtain the Latest Windows NT 4.0 Service Pack
NOTE: The fix that is needed to resolve this problem if you are running Microsoft Commercial Internet System 2.0 on a DEC Alpha computer is missing from the Windows NT 4.0 Service Pack 4 CD-ROM. For information about how to obtain the fix, please see the following article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/197514/EN-US/ )Msmtpsnp.dll File Is Missing From Windows NT 4.0 SP4 CD-ROM
Microsoft has confirmed this to be a problem in Microsoft Commercial Internet System version 2.0. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.
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