Known issues in this security update
Because of an issue that affects some versions of antivirus software, this fix applies only to computers on which the antivirus ISV has updated the ALLOW registry entry.
Contact your antivirus manufacturer to verify that their software is compatible and that they have set the following registry entry configured on the computer:
A Stop error occurs if this update is applied to a 32-Bit (x86) machine with the Physical Address Extension (PAE) mode disabled.
Microsoft is working on a resolution for this issue. Because of this issue, this update is currently available only to computers that have Physical Address Extension (PAE) mode enabled.
A Stop error occurs on machines that don't support Streaming Single Instructions Multiple Data (SIMD) Extensions 2 (SSE2).
Microsoft is working on a resolution and will provide an update in an upcoming release.
After you apply this update, the following symptoms may occur:
Before you install security update 4089229, run the following VBS script. Copy and paste this script into Notepad, and then save the file with a .vbs extension.
Note The script includes binary version checks around PCI.SYS file and sets the HackFlags registry key. For more information about this issue and the HackFlags registry key, see KB 2710558.
Note: If the IP address settings are lost after installing security update 4089229, you can manually adjust the HackFlags registry key.
If the registry key already exists, combine the existing value with the "0x00040000" bitmask to change the existing Flags value to: <Existing Flags value> (bitwise OR) 0x00040000. This method respects both the previous and new values.
Existing value: 0x0000001
Existing value: 0x0000020
New value: 0x08040001
How to obtain and install the update
Method 1: Windows Update
Method 2: Microsoft Update Catalog
Windows Server 2008 file information
The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and times for these files are listed in Coordinated Universal Time (UTC). The dates and times for these files on your local computer are displayed in your local time together with your current daylight-saving time (DST) bias. Additionally, the dates and times may change when you perform certain operations on the files.
The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.