Microsoft KB Archive/255262

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SMS: Changes to the Site Control File Are Lost After the File Is 434 Kilobytes

Article ID: 255262

Article Last Modified on 10/25/2006


  • Microsoft Systems Management Server 1.2 Standard Edition

This article was previously published under Q255262

IMPORTANT: This article contains information about modifying the registry. Before you modify the registry, make sure to back it up and make sure that you understand how to restore the registry if a problem occurs. For information about how to back up, restore, and edit the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows Registry


When you try to add addresses for new secondary sites, the Site Control file may not be updated with the new site information. Also, the Proposed Change window may not become populated when you make changes.


This problem can occur when the Sitectrl.ct0 file has reached a defined limit. The current limit is 454,000 bytes, or approximately 434 kilobytes (KB) on disk.


WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

To resolve this problem, replace the Base4.dll file on the Site Server with the file referenced below, add a required registry value, and then restart the server:

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to computers that are experiencing this specific problem. This fix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone 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 typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English-language version of this software update should have the following file attributes or later:

   Date        Time      Size     File name     Platform   Version
   03/28/2000  09:23pm   538,656  Base4.dll     I386

In addition to replacing the preceding file, the following registry value must be added before restarting the server. This value is read in at run time, and now defines the size of the Site Control file. If no value exists, the default value of 454,000 bytes is the maximum size of the Site Control file.

  1. Use Registry Editor (Regedt32.exe) to view the following registry key:


  2. On the Edit menu, click Add Value, and then add the following registry value:

       Value Name: SiteControlImageSize
       Data Type:  REG_DWORD
       Value:      454000 - 681000 (in decimal)
  3. Quit Registry Editor.

NOTE: When you enter the value, confirm that you enter it as decimal. Otherwise, 567500 as hexadecimal is equal to approximately 5 megabytes (MB). The range in hexadecimal is from 0x0006ED70 to 0x000A6428. If you are experiencing this problem, a good starting value would be 567500, or 0x0008A8CC in hexadecimal.

To work around this problem, create another Central Site and attach Primary Sites to this Central Site to reduce the size of the Site Control File.


Microsoft has confirmed this to be a problem in Systems Management Server version 1.2.

Additional query words: prodsms

Keywords: kbqfe kbhotfixserver kbbug kbfix KB255262