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Description of the Just-In-Time Compiler

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This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.
Summary
Microsoft Internet Explorer includes a Just-In-Time (JIT)compiler that changes the manner in which Java programs are run.
More information
The JIT compiler translates bytecodes into native machine code. Thiscompilation process is done only once, and a link is created between thebytecode and the corresponding compiled code. The purpose of thisprocess is to increase the speed at which Java programs run. You mayrealize a speed increase of more than 50 times when some mathematicallyintensive functions are performed.

NOTE: Some Java programs may run at the same speed or slower when youare using the JIT compiler.

You can enable or disable the JIT compiler by using the following steps:

  1. Click Start, point to Settings, and then click Control Panel.
  2. Double-click Internet.
  3. Click the Advanced tab.
  4. Click the Enable Java JIT Compiler check box to select it or to clear it, and then click OK.
NOTE: You must shut down and restart Internet Explorer for the change totake effect.
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Article ID: 154580 - Last Review: 06/22/2014 18:04:00 - Revision: 5.0

  • KB154580
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