[twachi]

I can't start Alice 2.3 on Windows XP too.
So I try to run in command line and it show this exception message:

java.lang.NoClassDefFoundError: Could not initialize class edu.cmu.cs.stage3.alice.scenegraph.renderer.directx7renderer.Renderer
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at java.lang.Class.newInstance0(Class.java:355)
        at java.lang.Class.newInstance(Class.java:308)
        at edu.cmu.cs.stage3.alice.scenegraph.renderer.DefaultRenderTargetFactory.getRenderer(DefaultRenderTargetFactory.java:85)
        at edu.cmu.cs.stage3.alice.scenegraph.renderer.DefaultRenderTargetFactory.setIsSoftwareEmulationForced(DefaultRenderTargetFactory.java:79)
        at edu.cmu.cs.stage3.alice.authoringtool.AuthoringTool.getRenderTargetFactory(AuthoringTool.java:990)
        at edu.cmu.cs.stage3.alice.authoringtool.editors.sceneeditor.CameraViewPanel.renderInit(CameraViewPanel.java:872)
        at edu.cmu.cs.stage3.alice.authoringtool.editors.sceneeditor.SceneEditor.setAuthoringTool(SceneEditor.java:238)
        at edu.cmu.cs.stage3.alice.authoringtool.JAliceFrame.guiInit(JAliceFrame.java:176)
        at edu.cmu.cs.stage3.alice.authoringtool.JAliceFrame.<init>(JAliceFrame.java:87)
        at edu.cmu.cs.stage3.alice.authoringtool.AuthoringTool.mainInit(AuthoringTool.java:461)
        at edu.cmu.cs.stage3.alice.authoringtool.AuthoringTool.<init>(AuthoringTool.java:411)
        at edu.cmu.cs.stage3.alice.authoringtool.JAlice.main(JAlice.java:138)
java.lang.NullPointerException
        at edu.cmu.cs.stage3.alice.scenegraph.renderer.DefaultRenderTargetFactory.setIsSoftwareEmulationForced(DefaultRenderTargetFactory.java:79)
        at edu.cmu.cs.stage3.alice.authoringtool.AuthoringTool.getRenderTargetFactory(AuthoringTool.java:990)
        at edu.cmu.cs.stage3.alice.authoringtool.editors.sceneeditor.CameraViewPanel.renderInit(CameraViewPanel.java:872)
        at edu.cmu.cs.stage3.alice.authoringtool.editors.sceneeditor.SceneEditor.setAuthoringTool(SceneEditor.java:238)
        at edu.cmu.cs.stage3.alice.authoringtool.JAliceFrame.guiInit(JAliceFrame.java:176)
        at edu.cmu.cs.stage3.alice.authoringtool.JAliceFrame.<init>(JAliceFrame.java:87)
        at edu.cmu.cs.stage3.alice.authoringtool.AuthoringTool.mainInit(AuthoringTool.java:461)
        at edu.cmu.cs.stage3.alice.authoringtool.AuthoringTool.<init>(AuthoringTool.java:411)
        at edu.cmu.cs.stage3.alice.authoringtool.JAlice.main(JAlice.java:138)

My windows was installed DirectX version 9.
What is DirectX version that Alice required?