Select the product you need help with
- Internet Explorer
- Windows Phone
- More products
The Windows XP Low Fragmentation Heap Algorithm Feature Is Available for Windows 2000
Article ID: 816542 - View products that this article applies to.
The Low Fragmentation Heap algorithm that is available in Windows XP is now available for Windows 2000.
The Low Fragmentation Heap algorithm minimizes heap fragmentation and improves Win32 Heap allocation performance when it allocates or deallocates variable-length memory blocks. This algorithm also scales well on multiprocessor computers.
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.
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, submit a request to 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:
http://support.microsoft.com/contactus/?ws=supportNote 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.
PrerequisitesNo prerequisites are required.
Restart RequirementYou must restart your computer after you apply this feature.
Hotfix Replacement InformationThis hotfix does not replace any other hotfixes.
File InformationThe English version of this fix has the file attributes (or later) 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.
This hotfix updates the Windows API to enable the new memory management scheme. To use this new implementation of the HeapSetInformation function, use an API call that is similar to the following:
Date Time Version Size File name ----------------------------------------------------- 11-Jun-2003 18:49 5.0.2195.6738 42,256 Basesrv.dll 17-Jan-2003 16:06 5.0.2195.6656 236,304 Cmd.exe 11-Jun-2003 18:49 5.0.2195.6660 233,232 Gdi32.dll 11-Jun-2003 18:49 5.0.2195.6741 711,440 Kernel32.dll 04-Feb-2003 20:15 5.0.2195.6661 29,264 Mountmgr.sys 11-Jun-2003 18:49 5.0.2195.6751 333,072 Msgina.dll 11-Jun-2003 18:49 5.0.2195.6741 483,600 Ntdll.dll 04-Jun-2003 17:17 5.0.2195.6752 1,695,296 Ntkrnlmp.exe 04-Jun-2003 17:18 5.0.2195.6752 1,694,336 Ntkrnlpa.exe 04-Jun-2003 17:18 5.0.2195.6752 1,715,264 Ntkrpamp.exe 04-Jun-2003 17:17 5.0.2195.6752 1,672,832 Ntoskrnl.exe 08-Apr-2003 05:54 5.0.2195.6701 90,232 Rdpwd.sys 11-Jun-2003 18:49 5.0.2195.6688 403,216 User32.dll 11-Jun-2003 18:49 5.0.2195.6745 385,808 Userenv.dll 02-Jun-2003 21:26 5.0.2195.6751 1,628,816 Win32k.sys 29-May-2003 23:25 5.0.2195.6750 181,520 Winlogon.exe 11-Jun-2003 18:49 5.0.2195.6752 243,984 Winsrv.dll 11-Jun-2003 18:49 5.0.2195.6741 711,440 Kernel32.dll 11-Jun-2003 18:49 5.0.2195.6741 483,600 Ntdll.dll 11-Jun-2003 18:49 5.0.2195.6751 1,628,816 Win32k.sys 11-Jun-2003 18:49 5.0.2195.6752 243,984 Winsrv.dll
For additional information about how hotfix packages are named, click the following article number to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/816915/EN-US/ )New Naming Schema for Microsoft Windows Hotfix Packages
Article ID: 816542 - Last Review: October 26, 2006 - Revision: 4.5