This article was previously published under Q274172
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Adding many users (20,000 and more) through Active Directory Services Interface (ADSI) code may cause the Lsass.exe process to grow rapidly in size, and can result in performance problems on the client computer. A system restart may be needed to restore normal performance and to shrink Lsass.exe.
NOTE: One test found that adding 45,000 users resulted in Lsass.exe growth of 9 megabytes (MB), which is approximately 200 bytes per user.
The way that handles were referenced made it difficult to track for proper release. The fix changes the way that handles are referenced so that they may be released properly.
Note that even after you apply this fix, Lsass.exe will still grow as you add users. But the growth should be slower, a plateau will be reached, and memory will ultimately be recovered.
To resolve this problem, obtain the latest service pack for Windows 2000. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
260910 How to obtain the latest Windows 2000 service pack
The following files are available for download from the Microsoft Download Center:
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file. The English version of this fix should have the following file attributes or later: