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See if you can access any other property like &quot;java.version&quot; or &quot;user.name&quot; to make sure if that's the only property which is not getting returned or if its a general problem.<br />
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BTW this says that even a signed applet on Vista has fewer permissions than on other Windows platforms:<br />
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<a href="http://java.sun.com/javase/6/webnotes/#windowsvista" rel="ugc">http://java.sun.com/javase/6/webnotes/#windowsvista</a>
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See if you can access any other property like "java.version" or "user.name" to make sure if that's the only property which is not getting returned or if its a general problem.

BTW this says that even a signed applet on Vista has fewer permissions than on other Windows platforms:

http://java.sun.com/javase/6/webnotes/#windowsvista [http://java.sun.com/javase/6/webnotes/#windowsvista]

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no, nothing works... We're not using a policy file, do we need that?
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no, nothing works... We're not using a policy file, do we need that?

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I have a java applet that needs to write files into the temp directory. &nbsp;The problem is that on vista the function System.getProperty(&quot;java.i<wbr />o.tmpdir&quot;)<wbr /> doesn't return anything, the applet is signed and the function is access controlled. &nbsp;I tried it with both j2se 5 and 6. Where are applets allowed to write to in Vista?
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I have a java applet that needs to write files into the temp directory.  The problem is that on vista the function System.getProperty("java.io.tmpdir") doesn't return anything, the applet is signed and the function is access controlled.  I tried it with both j2se 5 and 6. Where are applets allowed to write to in Vista?

cant find temp directory with applet in vista

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.

Java

Windows Vista is an operating system created by Microsoft as the successor to Windows XP. It was intended for PCs, workstations and laptops, and shares the same code base as its successor, Windows 7. New features included an updated graphical user interface (GUI) and visual style dubbed Aero, a new search component called Windows Search, redesigned networking, audio, print and display subsystems, and new multimedia tools. Vista aimed to increase the level of communication between machines on a home network, using peer-to-peer technology to simplify sharing files and media between computers and devices. Windows Vista included version 3.0 of the .NET Framework, allowing software developers to write applications without traditional Windows APIs.