Problems with Java Access Bridge

Hello to all,
first of all, sorry if the message is in the wrong place.
I'm developing an application, in C++, to fill up the fields in a Java aplication, it should work on a Windows 7 x64 machine. I'm using jdk 6u29 and java access bridge 2.0.2 for 32 bits soft.
My problem is that in some computers the function isJavaWindow() allways returns false when it it should be true, the most rare thing with it is tha it is working in a virtual machine, and in a clone of this virtual machine it is not working... Is there any special consideration I have to take into account when using Java AccessBridge?
Thank you!
Roger.

Bump... I'd like to know how to click a button with Access Bridge too. I can automate windows programs tho... So, isn't there really anyone who knows how to automate a Java program with C++ and Access Bridge?

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    http://java.sun.com/docs/books/tutorial/uiswing/index.html
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    /Lime

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