SYMPTOMS
When you try to use the Active Directory Users and Computers snap-in to make changes to the attributes of a mail-enabled user who belongs to your Microsoft Exchange 2000 Server organization, you receive an error message that is similar to the following:
The specified domain cannot be contacted.
CAUSE
This problem may occur if all the following conditions are true:
- The Active Directory directory service is running in a Microsoft Windows 2000 domain.
- The Windows 2000 domain has a two-way trust with a Microsoft Windows NT domain.
- You use an administrative account for the Active Directory (Windows 2000) domain to log on to a Microsoft Windows 2000 Professional or a Microsoft Windows XP-based computer that belongs to the Windows NT domain.
- The Windows 2000 or the Windows XP-based computer has the Windows 2000 Administration Tools installed.
- The Windows 2000 or the Windows XP-based computer has the Exchange System Tools installed.
This problem occurs because, when you try to change the attributes of the mail-enabled user, the changes must be written to the global catalog in the Windows 2000 domain. However, because the computer that you are trying to make the changes from belongs to the Windows NT domain, the Windows NT domain is searched for the global catalog.
If the Exchange System Tools component is removed from the Windows 2000-based computer or the Windows XP-based computer, this problem does not occur.
RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Exchange 2000 Server service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the
Time Zone tab in the Date and Time tool in Control Panel.
Date Time Version Size File name
-----------------------------------------------------------
14-Aug-2003 05:39 6.0.6498.0 4,370,432 Adcadmin.dll
14-Aug-2003 05:40 6.0.6498.0 69,632 Ccmproxy.dll
14-Aug-2003 05:40 6.0.6498.0 2,109,440 Cdoexm.dll
14-Aug-2003 05:40 6.0.6498.0 8,470,528 Exadmin.dll
14-Aug-2003 05:40 6.0.6498.0 3,850,240 Excluadm.dll
14-Aug-2003 05:40 6.0.6498.0 1,867,776 Exmgmt.exe
14-Aug-2003 05:27 6.0.6498.0 716,800 Exsp.dll
14-Aug-2003 05:40 6.0.6498.0 1,347,584 Exwmi.dll
14-Aug-2003 05:40 6.0.6498.0 73,728 Inproxy.dll
14-Aug-2003 05:40 6.0.6498.0 2,969,600 Mad.exe
14-Aug-2003 05:40 6.0.6498.0 806,912 Madmsg.dll
14-Aug-2003 05:40 6.0.6498.0 4,698,112 Maildsmx.dll
14-Aug-2003 05:40 6.0.6498.0 77,824 Pcproxy.dll
14-Aug-2003 05:40 6.0.6498.0 94,208 X400prox.dll
Note Because of file dependencies, this update requires
Exchange 2000 Server Service Pack 3 (SP3).
For more information, click the following article number to view the article in the Microsoft Knowledge Base:
301378
How to obtain the latest Exchange 2000 Server service pack