Article PS030911112 Windows 2003 upload size limit - error 800a0001 Problem Description Windows 2003 by default limits upload sizes to 200 KB for ASP pages. With AspUpload, this usually manifests as an error such as these: Persits.Upload.1 error ' 800a0001 ' Request.BinaryRead Failed. Persits.Upload.1 error ( 0x800a0001 ) Unspecified error Solution IIS 6.0 on Windows 2003 has a file named metabase.xml which resides in the folder C:\Windows\system32\inetsrv . By default, this file has this entry: AspMaxRequestEntityAllowed = "204800" This limits upload size to 204,800 bytes. You can change that to a large value (such as 2000000000 for 2 gigabytes) to allow your Windows 2003 server to accept large uploads. If your server does not allow the Metabase Edit-While-Running feature, you will need to stop the IIS service before you can save the metabase.xml file. Created: 9/11/2003 12:23:34 PM Last Modified: 5/27/2004 1:31:55 PM Copyright © Persits Software, Inc. 1998 - 2019 For technical support, write to support@persits.com.