When you use the
Response.BinaryWrite method to download files that are 400 MB or larger from an ASP.NET page, the Aspnet_wp.exe process may recycle. You may see the following event logged in the application log of the Event Viewer:
Event Type: Error
Event Source: ASP.NET 1.1.4322.573
Event Category: None
Event ID: 1000
Date: 5/16/2002
Time: 11:01:11 AM
User: N/A
Computer: ComputerName
Description:
Aspnet_wp.exe (PID: 9999) stopped unexpectedly.
In this scenario, the following things occur:
- The code typically causes the download box to appear.
- The Inetinfo.exe process starts to heavily exhaust memory.
- Private Bytes in Inetinfo.exe increase until you run out of virtual
memory.
- When you run out of virtual memory, you experience an unexpected
recycle of the Aspnet_wp.exe process. (Private Bytes in Aspnet_wp.exe
are not affected. The number of Aspnet_wp.exe Private Bytes does not
significantly increase.)
- Inetinfo.exe does not release the memory until the download is
complete or canceled.
Note If you perform simultaneous downloads, you may compound the problem.
Important This hotfix contains two types of packages: a Microsoft Windows Installer package and an Optional Component Manager package (OCM). If your computer is running the Microsoft Windows Server 2003 operating system, you must specify the Windows Server 2003 (OCM) update because Windows Server 2003 File Protection monitors the .NET Framework 1.1 files. If your computer is running an operating system other than Windows Server 2003, you must continue to use the Windows Installer package.
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next .NET Framework 1.1 service pack that contains this hotfix.
To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
The English version of this hotfix 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 Version Size File name
------------------------------------------------------------------------
01-Aug-2003 19:47 1.1.4322.930 253,952 Aspnet_isapi.dll
01-Aug-2003 19:47 1.1.4322.930 20,480 Aspnet_regiis.exe
01-Aug-2003 19:47 1.1.4322.930 32,768 Aspnet_wp.exe
16-May-2003 01:49 33,522 Installpersistsqlstate.sql
16-May-2003 01:49 34,150 Installsqlstate.sql
01-Aug-2003 19:38 1.1.4322.930 94,208 Perfcounter.dll
02-Aug-2003 08:54 1.1.4322.930 1,216,512 System.dll
02-Aug-2003 08:54 1.1.4322.930 323,584 System.runtime.remoting.dll
02-Aug-2003 08:55 1.1.4322.930 1,253,376 System.web.dll
02-Aug-2003 08:55 1.1.4322.930 819,200 System.web.mobile.dll
02-Aug-2003 08:55 1.1.4322.930 569,344 System.web.services.dll
02-Aug-2003 08:55 1.1.4322.930 1,335,296 System.xml.dll
01-Aug-2003 19:42 14,472 Webuivalidation.js
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
This hotfix adds an additional function to the
Response object (
Response.TransmitFile). You can
use the function instead of the
BinaryWrite function or instead of other functions to send files to the client.
Also, this function can be used regardless of the size of the file that you want to transmit. To test
this new functionality, paste the following code in an empty ASPX page after you download and install the hotfix. You must change the "c:\\repro\\z.zip" line in the code to reflect a path and a ZIP file that exist on a computer.
<script runat=server language=C#>
void Page_Load() {
Response.ContentType="application/x-zip-compressed";
Response.AddHeader("Content-Disposition", "attachment;filename=z.zip");
Response.TransmitFile("c:\\repro\\z.zip");
}
</script>