Knowledge Base

XWEB: Requirements For Internet Explorer File Attachment Support

Article ID: 170633

Article Last Modified on 10/28/2006


APPLIES TO


This article was previously published under Q170633

SYMPTOMS

When you use the Microsoft Outlook Web Access (OWA) client in Microsoft Internet Explorer or Netscape Navigator, you may receive the following error message while attempting to add an attachment to a new mail message:
Internet Explorer cannot open the Internet Site
HTTP://<Exchange Server>/Exchange/exupload.dll.

The server returned an invalid or unrecognized response.

CAUSE

The following requirements must be met in order for Microsoft Internet Explorer 3.0x for Windows to allow the ability to add file attachments to mail messages:

  1. Internet Explorer for Windows, version 3.02 or higher.
  2. Internet Explorer 3.02 File Upload Add-on for Windows 95 and Windows NT (RFC1867.EXE) installed on the client computer.
NOTE: This add-on only needs to be applied to the Windows versions of the browser.

For Internet Explorer for Macintosh, you must be running version 3.01a or higher. For Netscape Navigator, you must be running 3.02 or higher.

MORE INFORMATION

For more information about the File Upload Add-on for Internet Explorer, please read the Readme.txt file located on the Microsoft Exchange Server 5.0 SP1 CD or in the following Microsoft Knowledge Base article:

154481 Readme.txt: Microsoft Exchange version 5.0 Service Pack


Additional query words: Attachments IE Fail rfc1867.exe

Keywords: kbprb KB170633