Microsoft Product Support Services   All Products  |   Support  |   Search  | Home
  Support Home  |   Self Support  |   Assisted Support  |   Custom Support  |   Worldwide Support  |

Description of Internet Explorer 5.01

The information in this article applies to:
  • Microsoft Internet Explorer version 5.01 for Windows 98
  • Microsoft Internet Explorer version 5.01 for Windows 98 Second Edition
  • Microsoft Internet Explorer version 5.01 for Windows 95
  • Microsoft Internet Explorer version 5.01 for Windows NT 4.0


This article describes the additions and changes in Microsoft Internet Explorer 5.01. Internet Explorer 5.01 is build 5.00.2919.6307 and is an update to Internet Explorer 5.

For additional information about using or troubleshooting Internet Explorer, visit the Internet Explorer FAQ and Support Highlights page at the following Microsoft Web site:


For additional information about how to obtain Internet Explorer 5.01, click the article number below to view the article in the Microsoft Knowledge Base:

Q246211 Availability of Microsoft Internet Explorer 5.01

Additions and Changes

Reuse Windows for Launching Shortcuts

On the Advanced tab of Internet Options, there is a new feature called "Reuse Windows for Launching Shortcuts". When enabled, it uses an existing browser window when a universal resource locator (URL) is opened. When it is not selected, a new browser window is opened when a URL is called. This new feature is enabled by default. For additional information about this new feature, click the article number below to view the article in the Microsoft Knowledge Base:
Q241911 Description of Reuse Windows for Launching Shortcuts Setting

Browse in New Process

The "Launch Browser Windows in a separate process" feature in Internet Explorer 5.0 and Microsoft Windows 98 Second Edition and "Browse in New Process" in Internet Explorer 4.x and Windows 98, has been removed from Internet Explorer 5.01. For additional information about this feature being removed, click the article number below to view the article in the Microsoft Knowledge Base:
Q240928 Launch Browser Windows in a Separate Process Not Available

Internet Explorer Patching Technology

Internet Explorer 5.01 Setup contains a new client-server-based binary patching download mechanism. When you choose to install Internet Explorer 5.01, Setup scans the local computer for previous versions of Internet Explorer files, and then only the files and binary patches that are necessary to install Internet Explorer 5.01 on your computer are downloaded. This reduces the download size of Internet Explorer 5.01 by including only those files necessary for the upgrade.

56-Bit Encryption

There have been several changes to encryption in Internet Explorer 5.01:
  • Internet Explorer 5.01 uses 56-bit security that is exportable outside of the United States and Canada. New exportable cipher suites have been added to the Schannel.dll file that use 56-bit data encryption and up to 1024-bit key exchange.

  • Certificate date rules have changed. Child certificates are no longer required to be within the date range of their parent certificate.

  • New international Server Gated Cryptography (SGC) technology certificates have also been added to Internet Explorer.

  • If Internet Explorer 5.01 is installed over a previous version of Internet Explorer that had 128-bit security, then Internet Explorer 5.01 retains this security level. You can download the 128-bit upgrade package for Internet Explorer 5.01 at the following Microsoft Web site:

Uninstallation Changes

In previous versions of Internet Explorer, installing over a previous copy of Internet Explorer on a computer in which the uninstallation (backup) information had been removed, would result in a message that warned that uninstallation would not be available. When Internet Explorer 5.01 is installed on an Internet Explorer 5 installation without uninstallation information present, Internet Explorer 5.01 Setup will create new uninstallation information and enables the uninstallation feature. If you should choose to uninstall Internet Explorer 5.01, the browser would be restored to the previous version of Internet Explorer 5 that was installed prior to the Internet Explorer 5.01 upgrade.

Extension for Msinfo32.exe

Internet Explorer 5.01 includes a new extension for the Msinfo32.exe utility. The new extension adds relevant technical information about Internet Explorer to the Msinfo32.exe tool. This information includes:
  • Which version is installed.

  • Product ID.

  • Application path.

  • IEAK build type (if applicable).

  • Encryption level (cipher strength).

  • Product language.

  • All Internet Explorer file versions, sizes, dates, and paths.

  • Connectivity settings, including Autodial, Http 1.1 settings, and auto-configuration/proxy server settings.

  • Cache settings (location, size, disk space on cache drive, and so on).

  • ActiveX controls installed (with status and codebase URLs).

  • Content Advisor state (enabled or disabled).

  • Certificates installed (personal and others).

  • Trusted publishers.

  • Current levels for security zones.

To view the information provided by this new extension:
  • Click Start, click Run, type msinfo32.exe, and then click OK.

  • After the Msinfo32.exe tool opens, double-click the Internet Explorer 5 branch to expand it.

NOTE: Internet Explorer 5.01 does not install Msinfo32.exe. The extension is installed and registered, but can be viewed only on computers that have Msinfo32.exe installed. The operating systems that include this tool are: Windows 98, Windows 98 Second Edition, Microsoft Windows 2000 and computers with Office 2000 installed.

New Certificate Revocation checking behavior in Outlook Express

Beginning with Outlook Express 5.01, certificate revocation checking is disabled by default. This behavior only occurs if you install Internet Explorer 5.01 on a computer that does not already have Internet Explorer 5.0 installed. If you are currently running Internet Explorer 5.0, upgrading to Internet Explorer 5.01 respects the existing configuration. For additional information about certificate revocation, click the article number below to view the article in the Microsoft Knowledge Base:
Q241008 Certificate Revocation Behavior in Outlook Express

Read Receipts in Outlook Express

You can now request a receipt verifying that a message has been displayed on the recipient's computer. However, the recipient must support returning receipts for you to receive one.

Secure Email (S/MIME) Enhancements

Outlook Express 5.01 includes support for the S/MIME version 3 specification and other secure mail enhancements. The new features include support for CMS formatted messages, the ability to request and return secure receipts, the ability to send and process security labels, and the ability to send separate signing and encryption certificates.

New Stationery in Outlook Express

A dozen contemporary stationery designs are included in this version of Outlook Express.

Advertising Pane While Viewing Hotmail Folders

If you use Outlook Express 5.01 to obtain access to your Hotmail account, an advertising pane appears at the bottom of the Outlook Express screen to display Hotmail advertising. This advertising pane only appears when you view Hotmail folders. There is no supported method to manually turn off the pane.

Issues Addressed in Internet Explorer 5.01

The Internet Explorer issues documented in the following Microsoft Knowledge Base articles are addressed in Internet Explorer 5.01:
Q238723 Internet Explorer Restriction "Always Prompt on Download"
Q233280 Event Keycode Does Not Return Proper Value for ARROW Keys
Q235674 Memory Leak in Function Call
Q235902 Internet Explorer 5 Can Leak 192 Bytes of Pool Memory When the Content Is Refreshed
Q236914 Navigate Call Causes Browser to Hang
Q237324 Tabbing Problem in Java Dialog Box
Q234012 Menu Bar Disappears After Using Internet Explorer for a While
Q229606 Remain Connected to Internet After Send or Receive
Q230372 Mapping Drive to Computer with Korean Name Causes GPF
Q222045 File Upload Problem Using NTLM Authentication
Q223177 Clicking Link Inappropriately Routes Through Proxy Server
Q232098 Internet Explorer Error Message When Viewing a Secure Web Site
Q193489 Internet Explorer Returns Error Message When Being Redirected
Q234266 High-Speed Push-Technology Program May Overwrite Internet Cache
Q235524 Secure FTP Through a Proxy Does Not Work Using NTLM
Q236178 Second Call to FtpOpenFile() Without Write Permission Hangs
Q236920 Connections No Longer Use LAN Automatic Configuration and Proxy
Q237198 C5 and E5 Korean Characters Displayed as Question Mark in Internet Explorer
Q240023 Error Message: "IEXPLORE.exe Exception: Access Violation (0xc0000005), Address 0x702be865" When Installing Multiple Packages from More Than One CAB File with an OSD File
Q241716 Internet Explorer 5 Included with Office 2000 Does Not Retain the Automatic Configuration Script Address
Q239750 "Text/Plain" Content-Type Header Field Is Ignored
Q232031 Autoproxy URL Not Applied to Dial-Up Connection During Internet Explorer Setup
Q229940 How to Disable Internet Explorer Password Caching
Q232468 Cannot Hide Mail Toolbar Button for Non-Administrators
Q235302 Silent Minimal Internet Explorer Install with Custom Components
Q229708 Problem with DHTML Behaviors and Table Cell Alignment
Q229710 Cross Frame Security Patch Denies Access to Office Documents
Q230524 Date Formatting Problems in Internet Explorer 5
Q231339 Form Text Box Does Not Accept Double-Byte Characters
Q233528 Internet Explorer Linked Pages Are Being Cached in Frame Set
Q235239 Pressing BACKSPACE Key in Text Input Box When Web Page Is Inactive Causes Browser to Move Through Browser History
Q217196 Internet Explorer May Not Use Images Stored in Local Cache
Q234247 Web Page with "Pragma: No-Cache" Tag Stored in Cache Not Deleted
Q239101 Browse Button Does Not Work Specifying a Directory or Filename
Q189679 Error Message: Setup Was Unable to Install All the Components
Q224540 Err Msg: IE5WZD Caused an Exception C0010000H in Module...
Q232484 Internet Explorer Hangs When You Click a URL Link
Q236784 No Sound After Download Is Complete in Internet Explorer 5
Q224176 Cannot Spell Check Messages in Outlook Express 5
Q226326 Update Available For 'DHTML Edit' Security Issue
Q231452 Update Available for 'Legacy ActiveX Control' Issue
Q226325 Update Available for Unsafe ActiveX Controls
Q241361 Update Available for Vulnerabilities in ActiveX Controls Issue
Q243638 Update Available for 'IFRAME ExecCommand' Vulnerability
Q241362 Update Available for the ImportExportFavorites Issue
Q240308 Update Available for Scriptlet.Typelib/Eyedog Vulnerability
Q231450 Update Available for the 'Malformed Favorites Icon' Issue
Q244540 Update Available for 'Active Setup Control' Vulnerability
Q244357 Update Available for 'Javascript Redirect' Vulnerability
Q176420 BUG: InternetSetOption Does Not Set Timeout Values

Additional query words: fix list fixlist fixes ie5faq

Keywords : kbtool msiew95 msient msiew98
Issue type : kbinfo
Technology :

Last Reviewed: October 21, 2000
2000 Microsoft Corporation. All rights reserved. Terms of Use.

Article ID: Q244655

Last Reviewed:
October 21, 2000

Send to a friend

Provided by
Microsoft Product Support Services

Did the information in this article help answer your question?

Did not apply

Please provide additional comments about this information.
(255 character max)