Service Pack 1 - Bugfixes

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Microsoft Internet Explorer 4.01 with Service Pack 1 Updates

Microsoft^® Internet Explorer 4.01 with Service Pack 1 addresses the top product support issues in Internet Explorer 4.0x, including year 2000-compliance issues and the top browser, installation and component issues, as well as common problems reported to Microsoft Product Support.

The following list details the top issues that have been fixed with Service Pack 1 to give users the best experience on the Web with Internet Explorer.

As customers continue to provide feedback on Microsoft Internet Explorer, Microsoft will continue to release Internet Explorer Service Packs as appropriate. Microsoft feels this is the best way to give customers the most up-to-date version of Internet Explorer, rather than installing multiple fixes and patches.

All of the updates for Microsoft Internet Explorer, as well as all other Microsoft products, are available in the Microsoft Knowledge Base on the Web at http://support.microsoft.com/.

Year 2000 Issues

Year 2000 Compliance

Three minor issues with Microsoft Internet Explorer 4.0x year 2000-compliance have been fixed in Service Pack 1:

• If a Web site used a cookie with a two-digit year of "00," Internet Explorer mistakenly recognized the cookie as expired. In this case, the browser would have behaved at that Web site as if no cookie support were enabled. Cookies with four-digit expiration dates, or expiration dates before and after the year 2000, work correctly.
• If a Web server communicates a two-digit year of "00" in its HTTP 1.0 header, Internet Explorer mistakenly recognized pages on that site as expired and did not cache them locally. Browsing of the site worked normally while connected, but the site was not available for off-line browsing. HTTP 1.1 headers, headers with a four-digit year, or headers containing two-digit years before and after the year 2000 work correctly.
• If Microsoft Wallet was installed (an optional add-on for Internet Explorer configured via the Content tab of Internet Options), Internet Explorer would not have allowed the addition of a credit card with an expiration date in or beyond the year 2000.

Top Support Issues

Installation Fixes

• Unable to install Java packages from c:\windows\java\classes xmldso.cab. If users upgraded over Microsoft Internet Explorer 3.x, and if the security settings were set not to allow active content to be downloaded, the Java package manager could not install the class files from this cabinet file.
• Java packages access denied errors. The most common cause of this problem was the existence of imagehlp.dll from Lotus Notes preventing the Java package manager from installing its class files.
• Unable to succeed during first reboot after installing Internet Explorer 4.01 with Norton AntiVirus 4.0 installed. Installation problems appeared for users with Norton AntiVirus 4.0 installed, specifically during the procedure where users needed to reboot to complete the Internet Explorer installation.
• Software Update Installed dialog box always displayed when first starting Internet Explorer after a reboot. When users started Internet Explorer, the Software Update Installed dialog box may have been displayed. This behavior could have occurred if users had subscribed to the Software Updates channel and chosen Don’t Update Now when prompted to upgrade. Clicking on Cancel during subsequent reminders caused the reminder to reappear each time users started Internet Explorer after a system reboot.

Browser Fixes

• System32 folder opened instead of the Welcome dialog box or Channel Bar after quickly logging on to the Windows NT^® operating system. When users quickly logged on to Windows NT 4.0 after Microsoft Internet Explorer 4.0x was installed, the System32 folder may have opened instead of the Welcome dialog box or Channel Bar. In addition, a DCOM error may have appeared in the Windows NT Event Viewer.
• Explorer hung at shutdown with mapped network drives. When Internet Explorer 4.01 was installed on a Windows^® 95 operating system-based machine with Operating System Release 2, the system may have hung when attempting to shut down if the user had three or more drive mappings.
• Choosing User Defined for language breaks links in Internet Explorer 4.01. When users chose User Defined as a language selection from the context menu of a Web page, Internet Explorer 4.01 may not have navigated when users clicked on links.
• Internet Explorer wouldn’t open a link in New Window. When users right-clicked a Web address on a Web page and then clicked Open In New Window, the Web page may not have opened in a new window. This issue could occur if users installed a program that did not properly register interfaces in the following registry key: HKEY_CLASSES_ROOT\Interface
• Internet Explorer 4.0 got a connection timeout after five minutes of waiting. In previous versions, users who performed long queries would receive the "10060 connection timeout" screen when their query timed out. There was no way to increase the timeout because it wasn’t using the GlobalConnectTimeout setting. It now supports a ReceiveTimeout setting.
• Internet Explorer 4.0 did not correctly append file name extensions. When users clicked a link to a file, clicked Save This File To Disk, changed the name of the file or specified a download folder in the File Name box, and then saved it, the file that was saved may have had no file extension.
• Enabled support for authentication via proxy on FTP and Gopher. Users who tried to authenticate using NTLM via proxy were unable to do so successfully.

Internet Explorer Component Fixes

• Outlook™ Express faulted when downloading news articles and the modem disconnected. If the connection to the Internet was broken while newsgroup messages were being downloaded, users received "MSIMN caused an invalid page fault in module KERNEL32.DLL."
• NetMeeting™ conferencing software: Audio "skipped" like a record. The last few words may have been repeated consistently with the same intensity and duration. For example, user A said "Internet Explorer 4.01 with Service Pack 1." User B heard "Internet Explorer 4.01 with Service Pack 1."
• NetMeeting video: Maximum capture frame rate was incorrectly kept below 17 frames per second. On high bandwidth connections the highest frame rate was approximately 17 fps. The maximum frame rate is now approximately 30 fps. Results will differ on specific hardware configurations. For example, a Pentium Pro or Pentium II is required on both ends to achieve 30 fps.
• Microsoft Chat: File transfer problems may have occurred when machine had modem and network card installed. File transfers would not always succeed if the user had both a network card and a dial-up connection.