Microsoft has released security bulletin MS04-039. This security bulletin contains all the relevant information about the security update, including file manifest information and deployment options. To view the complete security bulletin, visit one of the following Microsoft Web sites:

•	Home users: http://www.microsoft.com/protect/computer/updates/bulletins/default.mspx (http://www.microsoft.com/protect/computer/updates/bulletins/default.mspx)
•	IT professionals: http://www.microsoft.com/technet/security/bulletin/ms04-039.mspx (http://www.microsoft.com/technet/security/bulletin/ms04-039.mspx)

If you set the DNS cache size to zero, you effectively disable DNS caching on the affected system. This setting would prevent the affected software from using potentially spoofed data from the cache. The setting may have a negative performance effect on DNS resolution. Apply this setting only on systems that cannot apply the security update as a short-term workaround.

For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

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Known issues

For additional information about known issues that may occur when you install this security update, click the following article number to view the article in the Microsoft Knowledge Base:

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