Internet Explorer May Seem to Run Java Programs Slowly (178140)


The information in this article applies to:

  • Microsoft Internet Explorer 1.0 for Windows 95
  • Microsoft Internet Explorer 2.0 for Windows 95
  • Microsoft Internet Explorer 3.0 for Windows 95
  • Microsoft Internet Explorer 3.01 for Windows 95
  • Microsoft Internet Explorer 3.02 for Windows 95
  • Microsoft Internet Explorer 4.0 for Windows 95
  • Microsoft Internet Explorer 4.01 for Windows 95
  • Microsoft Internet Explorer 5.0 for Windows 95
  • Microsoft Internet Explorer 5.01 for Windows 95
  • Microsoft Internet Explorer 5.5 for Windows 95
  • Microsoft Internet Explorer 3.x for Windows 95
  • Microsoft Internet Explorer 4.x for Windows 95
  • Microsoft Internet Explorer 2.0 for Windows NT 4.0
  • Microsoft Internet Explorer 3.0 for Windows NT 4.0
  • Microsoft Internet Explorer 3.01 for Windows NT 4.0
  • Microsoft Internet Explorer 3.02 for Windows NT 4.0
  • Microsoft Internet Explorer 4.0 for Windows NT 4.0
  • Microsoft Internet Explorer 4.01 for Windows NT 4.0
  • Microsoft Internet Explorer 5.0 for Windows NT 4.0
  • Microsoft Internet Explorer 5.01 for Windows NT 4.0
  • Microsoft Internet Explorer 5.5 for Windows NT 4.0
  • Microsoft Internet Explorer 4.0 for Windows 98
  • Microsoft Internet Explorer 4.01 for Windows 98
  • Microsoft Internet Explorer 5.0 for Windows 98
  • Microsoft Internet Explorer 5.01 for Windows 98
This article was previously published under Q178140

SYMPTOMS

A Java program may seem to run slower with Internet Explorer than with a Netscape browser.

CAUSE

This behavior can occur if the Java program uses Netscape's Internet Foundation Classes (IFC), which are not installed with Internet Explorer. As a result, the IFC files are downloaded each time the program is run.

RESOLUTION

To resolve this issue, download Netscape's IFC classes from the Netscape Web site. The Netscape IFC library is provided with Netscape browsers. Netscape's Web page is located at the following address:

http://home.netscape.com/

Netscape's IFC classes are a library of Java classes that developers can use in creating Java programs.

Note that if your security setting in Internet Explorer is set to Medium or higher, you may be prompted to temporarily reduce your security level to download the IFC library. To do so, follow these steps:
  1. In Internet Explorer, click Internet Options on the View menu.
  2. Note the current security level setting. Click the Security tab, click Low, and then click OK.
  3. Press the F5 key to refresh the page.
After you load Netscape's IFC, you can change the security setting back to its original setting. To do so, follow these steps:
  1. In Internet Explorer, click Internet Options on the View menu.
  2. Click the Security tab, click your original setting, and then click OK.
The third-party product discussed in this article is manufactured by a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance or reliability.

STATUS

This behavior is by design.
Modification Type:MajorLast Reviewed:12/8/2003
Keywords:kb3rdparty kbenv KB178140
©2003 Microsoft Corporation. All rights reserved.