Microsoft KB Archive/934561

= Windows Vista Aero theme desktop effects are disabled when you run a Java application =

Article ID: 934561

Article Last Modified on 4/12/2007

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APPLIES TO


 * Windows Vista Ultimate
 * Windows Vista Home Premium
 * Windows Vista Enterprise
 * Windows Vista Business 64-bit Edition
 * Windows Vista Business
 * Windows Vista Ultimate 64-bit Edition
 * Windows Vista Home Premium 64-bit Edition
 * Windows Vista Home Basic 64-bit Edition
 * Windows Vista Enterprise 64-bit Edition

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SYMPTOMS
You run a Java application on a Windows Vista-based computer. On the Windows Vista-based computer, you use the transparent glass effect or other effects of the Aero theme for the desktop. However, you may notice that the Aero theme desktop effects are disabled.



CAUSE
This issue may occur if you are running a Java application that uses an older version of the Java Runtime Environment (JRE) on Windows Vista. When you use an older version of JRE, Windows Vista will disable the Desktop Window Manager (DWM) that controls the transparent glass effect or other effects of the Aero theme. The DWM manages the desktop and the primary display settings in Windows Vista.

When an application that uses as an older version of the JRE tries to lock the primary display in order to apply its own display settings, the DWM is disabled. When the DWM is disabled, the Aero desktop theme effects are also disabled.



RESOLUTION
To resolve this issue, upgrade the older version of JRE to the latest version. To download the latest version of JRE, visit the following Sun Microsystems Web site:

http://java.sun.com/javase/6/webnotes/install/index.html

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The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.

Keywords: kbexpertiseinter kbtshoot kbprb KB934561

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