Knowledge Base

Compatibility Check Box Is Unavailable During Setup

Article ID: 197011

Article Last Modified on 1/23/2007


APPLIES TO


This article was previously published under Q197011

SYMPTOMS

When you install or download Internet Explorer 5, the Compatibility check box may be unavailable.

CAUSE

This behavior can occur for any of the following reasons:
  • you are not running Internet Explorer 4.
  • you are installing Internet Explorer 5 from a download that does not include the Compatibility Mode option.

RESOLUTION

To resolve this issue, use the appropriate method:

MORE INFORMATION

Purpose of Compatibility Mode

Some Web content can be affected by changes to the HTML parsing engine or object (scripting) model incorporated into new versions of Internet Explorer. For this reason, Web page authors or developers need to test their content with each version of Internet Explorer for which their content is designed. Prior to Internet Explorer 5, testing Web site compatibility with various versions of Internet Explorer required multiple computers or dual-boot configurations. With Compatibility mode, you can run an Internet Explorer 4-compatible browser side-by-side with Internet Explorer 5. Compatibility mode is designed for testing HTML parsing and script issues and is not intended to be used as a primary Web browser.

Additional query words: gray grayed grey greyed out 5.0 5.00 5.50

Keywords: kbsetup kbprb KB197011