Microsoft KB Archive/938458

= Error message when you try to add more than 64 logon workstations in Windows Server 2003 or in Windows 2000 Server: &quot;This property is limited to 64 values&quot; =

Article ID: 938458

Article Last Modified on 10/11/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition
 * Microsoft Windows Server 2003, Datacenter Edition (32-bit x86)
 * Microsoft Windows Server 2003 R2 Datacenter Edition (32-Bit x86)
 * Microsoft Windows Server 2003 R2 Datacenter x64 Edition
 * Microsoft Windows Server 2003 R2 Enterprise Edition (32-Bit x86)
 * Microsoft Windows Server 2003 R2 Enterprise x64 Edition
 * Microsoft Windows Server 2003 R2 Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003 R2 Standard x64 Edition
 * Microsoft Windows 2000 Server

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SYMPTOMS
You are running one of the following operating systems on a computer:
 * Windows Server 2003
 * Windows Server 2003 R2
 * Microsoft Windows 2000 Server

In Active Directory Users and Computers, you try to add more than 64 logon workstation entries on the Logon To tab in the user account properties dialog box. After you do this, you may receive the following error message:

This property is limited to 64 values. You must remove some of the existing values before you can add new ones.



CAUSE
This problem occurs because the User-Workstations attribute has a Range-Upper value of 1,024 characters. When you enter the NetBIOS computer names by using Active Directory Users and Computers, the NetBIOS name has a maximum length of 16 characters. Therefore, you can store only 64 logon workstation entries.



RESOLUTION
To resolve this problem, follow these steps:  Start the Active Directory Service Interfaces (ADSI) Edit Microsoft Management Console (MMC) snap-in. To do this, follow these steps:  Click Start, click Run, type adsiedit.msc, and then click OK. Click Tools, and then click ADSI Edit.  Expand the Schema container. Right-click the Active Directory Schema node, and then click Properties. In the Attributes box, click the userWorkstations property.</li> In the Edit Attribute box, type 8192 for the rangeUpper value, click Set, click Apply, and then click OK.</li></ol>

To verify this value, set the userWorkstations property for a user to a string length of 8,192 characters. If you change the value to any other value, the operation is not successful. You can now accommodate 480 computers in the Logon To tab in the user account properties dialog box.

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STATUS
This behavior is by design.

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MORE INFORMATION
rangeUpper is the Ldap-Display-Name for the Range-Upper value. Range-Upper is the maximum value or the maximum length of an attribute. The User-Workstations attribute is defined in the userWorkstations property of a user. The User-Workstations attribute is a single-valued property that represents a comma-separated list of NetBIOS computer names.

For more information about the User-Workstations attribute, visit the following Microsoft Web site:

http://msdn2.microsoft.com/en-us/library/ms680868.aspx

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