Some Internet Security Systems products stop running after you install the revised MS05-019 security update or after you install the Update Rollup 1 for Windows 2000 SP4 on a Windows 2000-based computer
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After you install the revised version of security update MS05-019 that was released on June 14, 2005 or after you install the Update Rollup 1 for Windows 2000 Service Pack 4 (SP4) that was released on June 28, 2005 on a Microsoft Windows 2000-based computer, the following Internet Security Systems (ISS) products stop running and the increased protection provided by these products is disabled:
RealSecure Desktop 3.6 with XPU versions ENO, ENP, and ENQ
RealSecure Desktop 7.0 with XPU versions ENO, ENP, and ENQ
BlackICE Agent for Server 3.6 with XPU versions ENO, ENP, and ENQ
BlackICE PC Protection 3.6 with XPU versions CNO, CNP, and CNQ
BlackICE Server Protection 3.6 XPU versions CNO, CNP, and CNQ
The affected ISS products generally stop running within one to two minutes after you start the computer.
Note ISS X-Press Updates (XPUs) are signature and driver updates that are required for the most current security protection. The XPUs listed here are significantly older than the current XPU versions. As a precautionary measure, Windows Update will not offer the revised MS05-019 security update to computers that are running these programs until a more recent XPU has been installed. Also, if the following ISS programs are installed, users of the affected computer may not be notified to install the revised version of security update MS05-019. This behavior occurs because the following programs also may contain an affected version of the affected file. However, the following programs are not affected. Therefore, you can manually install the revised version of security update MS05-019 or the Update Rollup 1 for Windows 2000 SP4.
Note This issue does not affect the BlackICE Defender, BlackICE Defender for Server, or Proventia Desktop products.
This issue occurs because the affected ISS products cannot detect the changes that are made to the TCP/IP protocol by the revised MS05-019 security update or by the Update Rollup 1 for Windows 2000 SP4. The affected ISS products contain one of the following versions of the Blackdrv.sys file:
Versions later than 184.108.40.206 and earlier than 3.6.319.0
Versions later than 220.127.116.11 and earlier than 7.0.319.0
To resolve this issue, upgrade the affected ISS products with the current XPU versions. XPUs whose versions are ENR or later are not affected by this issue. For more information, visit the following ISS Web sites:
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For more information, click the following article numbers to view the articles in the Microsoft Knowledge Base:
900345 Fixes that are included in Update Rollup 1 for Microsoft Windows 2000 Service Pack 4 that is dated June 28, 2005
891861 Update Rollup 1 for Windows 2000 SP4 and known issues