Microsoft KB Archive/826768

= FIX: The Copy Command is Very Slow on Large Files =

Article ID: 826768

Article Last Modified on 5/27/2005

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APPLIES TO


 * Microsoft Windows CE .NET 4.2

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SYMPTOMS
If you copy large files by using the command interpreter copy command, the copy task is very slow.



CAUSE
The copy command uses a 4-kilobyte (KB) buffer for file operations. This results in poor performance on very large files.



Hotfix Information
A supported software update is now available from Microsoft as Windows CE 4.20 Core OS QFE 030814_KB826768. To resolve this problem immediately, click the following article number for information about obtaining Windows CE Platform Builder and core operating system software updates:

837392 How to locate core operating system fixes for Microsoft Windows CE Platform Builder products

This hotfix does not replace any other hotfixes.

File Information
The English version of this package has the file attributes (or later) that are listed in the following table. Date        Time   Version            Size    File name --

14-Aug-2003 22:29  4.2.3.814         731,752  Wincepb42-030814-kb826768-armv4.exe 14-Aug-2003 22:29  4.2.3.814         731,752  Wincepb42-030814-kb826768-armv4i.exe 14-Aug-2003 22:29  4.2.3.814         739,944  Wincepb42-030814-kb826768-mipsii.exe 14-Aug-2003 22:29  4.2.3.814         739,944  Wincepb42-030814-kb826768-mipsii_fp.exe 14-Aug-2003 22:29  4.2.3.814         744,040  Wincepb42-030814-kb826768-mipsiv.exe 14-Aug-2003 22:29  4.2.3.814         744,040  Wincepb42-030814-kb826768-mipsiv_fp.exe 14-Aug-2003 22:28  4.2.3.814         723,560  Wincepb42-030814-kb826768-sh3.exe 14-Aug-2003 22:28  4.2.3.814         723,560  Wincepb42-030814-kb826768-sh4.exe 14-Aug-2003 22:28  4.2.3.814         703,080  Wincepb42-030814-kb826768-x86.exe The 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.   Date         Time                      Size    File name --

Path: 030814_kb826768\Public\Common\Oak\Lib\Armv4\Debug 12-Aug-2003 15:12                    293,016  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Armv4\Retail 12-Aug-2003 15:12                    256,488  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Armv4i\Debug 12-Aug-2003 15:12                    293,506  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Armv4i\Retail 12-Aug-2003 15:12                    256,962  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Mipsii\Debug 12-Aug-2003 15:12                    300,152  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Mipsii\Retail 12-Aug-2003 15:12                    265,494  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Mipsii_fp\Debug 12-Aug-2003 15:12                    300,196  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Mipsii_fp\Retail 12-Aug-2003 15:12                    265,518  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Mipsiv\Debug 12-Aug-2003 15:12                    302,156  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Mipsiv\Retail 12-Aug-2003 15:12                    266,808  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Mipsiv_fp\Debug 12-Aug-2003 15:13                    302,200  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Mipsiv_fp\Retail 12-Aug-2003 15:13                    266,832  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Sh3\Debug 12-Aug-2003 15:13                    251,344  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Sh3\Retail 12-Aug-2003 15:13                    233,992  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Sh4\Debug 12-Aug-2003 15:13                    251,344  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\Sh4\Retail 12-Aug-2003 15:13                    233,824  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\X86\Debug 12-Aug-2003 15:12                    244,408  Cmd.lib

Path: 030814_kb826768\Public\Common\Oak\Lib\X86\Retail 12-Aug-2003 15:12                    221,612  Cmd.lib



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Keywords: kbbug kbfix kbqfe KB826768

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