When you try to use a packet-writing program for optical media recording devices on a Microsoft Windows XP Service Pack 2 (SP2)-based computer, the program may run slower than expected.

Back to the top

This problem occurs after you install Windows XP SP2. Windows XP SP2 introduced a change in cache management. This change causes write operations to the optical disk to occur nonsequentially.

Back to the top

Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site: Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.

File information

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 tool in Control Panel.

   Date         Time   Version         Size       File name
   --------------------------------------------------------------
   04-Jan-2005  20:01  5.1.2600.2591   2,135,552  Ntkrnlmp.exe     
   04-Jan-2005  18:12  5.1.2600.2591   2,056,832  Ntkrnlpa.exe     
   04-Jan-2005  18:12  5.1.2600.2591   2,015,232  Ntkrpamp.exe     
   04-Jan-2005  19:55  5.1.2600.2591   2,179,456  Ntoskrnl.exe

Back to the top

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

Back to the top

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

Back to the top