"Stop error code 0x00000044 (MULTIPLE_IRP_COMPLETE_REQUESTS)" error message during a shutdown or standby operation

This article applies to Windows 2000. Support for Windows 2000 ends on July 13, 2010. The Windows 2000 End-of-Support Solution Center is a starting point for planning your migration strategy from Windows 2000. For more information see the Microsoft Support Lifecycle Policy.


In Windows 2000, when you perform a shutdown, hibernation, or standby operation, you may receive the following error message:

Stop: 0x00000044 (0x812790e8, 0x00000cca, 0x00000000, 0x00000000)


This behavior can occur because a driver has requested (by using the IoCompleteRequest function) that an I/O request packet (IRP) needs to be completed, but the packet has already been completed.

Also, the following file is known to cause this behavior:

File name: Falstaff.sys
File version:
File size: 36,870 bytes
File date: March 23, 2000
Company name: In-System Design, Inc.


To resolve this behavior, contact the vendor of the driver and request an update for the driver.

In regard to the Falstaff.sys file, you may be able to obtain new drivers that can replace the Falstaff.sys file and its associated drivers. These new drivers may use different file names. Refer to the following In-System Web site for more information:

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