Microsoft is aware of an issue that affects a limited number of printer drivers. When you try to print by using one of these drivers after you install security update 925902, you may experience the following symptoms.

•	Your computer automatically restarts.
•	After you log on, you receive the following error message: Microsoft Windows The system has recovered from a serious error. A log of this error has been created. Please tell Microsoft about this problem. We have created an error report that you can send to help us improve Microsoft Windows. We will treat this report as confidential and anonymous. To see what data this error report contains, click here. Note If the error message still appears, and you want to see the data that the error report contains, click the click here link at the bottom of the message box. You see error signature information that may resemble the following: BCCode : 0x0000007f (0x00000000, 0x00000000, 0x00000000, 0x00000000) OSVer : 5_1_2600 SP : 0_0 Product : 256_1
•	You receive the following Stop error message: A problem has been detected and Windows has been shut down to prevent damage to your computer... Technical information: *** Stop 0x0000007f (0x00000000, 0x00000000, 0x00000000, 0x00000000) UNEXPECTED_KERNEL_MODE_TRAP
•	When you view the System log in Event Viewer, you notice an Event ID 1003 entry that contains information that resembles the following: Date: date Source: System Error Time: time Category: (102) Type: Error Event ID: 1003 User: N/A Computer: computer name Description: Error code 0x0000007f (0x00000000, 0x00000000, 0x00000000, 0x00000000) . For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp. Data: 0000: 53 79 73 74 65 6d 20 45 System E 0008: 72 72 6f 72 20 20 45 72 rror Er 0010: 72 6f 72 20 63 6f 64 65 ror code 0018: 20 30 30 30 30 30 30 35 00000MN 0020: 30 20 20 50 61 72 61 6d 0 Param 0028: 65 74 65 72 73 20 66 66 eters ff 0030: 66 66 66 66 64 31 2c

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Notes

•	The symptoms of a Stop error vary according to the system failure options of the computer. For more information, click the following article number to view the article in the Microsoft Knowledge Base: 307973 (http://support.microsoft.com/kb/307973/) How to configure system failure and recovery options in Windows
•	The four parameters that are included in the error signature information (BCP x) and in the parentheses of the technical information for the Stop error may vary according to the configuration of the computer.
•	Not all Stop 0x0000007f errors are caused by the problem that is described in this article. For more information about Stop 0x0000007F errors , click the following article number to view the article in the Microsoft Knowledge Base: 137539 (http://support.microsoft.com/kb/137539/) General causes of "Stop 0x0000007F" errors

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This problem occurs when a printer driver makes a call that has invalid parameters to the Win32K.sys component. This problem affects the following printer drivers:

•	Ricoh LAN Fax Driver
•	Gestetner P7026n PCL
•	Ricoh Laser AP2600N PCL
•	HP LaserJet 9050
•	HP LaserJet 4200
•	HP 4050 PCL6
•	HP LaserJet 4345 PCL 6
•	Canon Pixma MP170

This problem may also occur if you print from SQL Reporting Services to a Printer Command Language (PCL) printer.

Notes

•	If you receive a similar error message when you use another driver, install the update that is mentioned in this article. If we confirm that other printer drivers are affected by this problem, we will update this article.
•	Check the printer manufacturer's Web site for the updated drivers that might resolve this issue.

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Update information

Microsoft Windows 2000

The following file is available for download from the Microsoft download center:

Download the Windows2000-KB935843-x86-ENU.EXE package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=FB630B61-F84F-4D4C-8E6C-0A7E8210A506)

Release Date: April 18, 2007

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: 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.

Prerequisites

To install this update, you must have Windows 2000 Service Pack 4 (SP4) installed on the computer.

Deployment information

To install this update without requiring any user intervention and without restarting the computer, administrators can use the following command: Note When you use when you use the /quiet switch and the /restart switch, you should restart the computer and verify that the installation was successful. You should also review the Kb935843.log file for information about any errors that occur when you use the /quiet switch. For more information about the setup switches that are supported by this update, click the following article number to view the article in the Microsoft Knowledge Base:

Restart information

You must restart the computer after you apply this update.

File attributes

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

File name	File version	File size	Date	Time	Platform	Service branch
Win32k.sys	5.0.2195.7135	1,641,968	11-Apr-2007	08:12	x86	Not applicable
Win32k.sys	5.0.2195.7135	1,641,968	11-Apr-2007	08:12	x86	UNIPROC

Microsoft Windows XP

The following file is available for download from the Microsoft download center:

Download the WindowsXP-KB935843-x86-ENU.exe package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=69443B00-F831-4785-B292-DBF8CF002C6A)

Release Date: April 18, 2007

For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base: 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.

Prerequisites

To install this update, you must have Windows XP Service Pack 2 (SP2) installed on the computer.

Deployment information

To install this update without requiring any user intervention and without restarting the computer, administrators can use the following command: Note When you use when you use the /quiet switch and the /restart switch, you should restart the computer and verify that the installation was successful. You should also review the Kb935843.log file for information about any errors that occur when you use the /quiet switch. For more information about the setup switches that are supported by this update, click the following article number to view the article in the Microsoft Knowledge Base:

Restart information

You must restart the computer after you apply this update.

File attributes

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

File name	File version	File size	Date	Time	Platform	SP requirement	Service branch
Win32k.sys	5.1.2600.3115	1,843,584	10-Apr-2007	10:37	x86	SP2	SP2GDR
Win32k.sys	5.1.2600.3115	1,843,968	10-Apr-2007	10:59	x86	SP2	SP2QFE

Note DELL 1815dn are also affected by this update.

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Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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For more information about security update 925902, click the following article number to view the article in the Microsoft Knowledge Base: For more information about the standard terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base: The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

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