Java.lang.UnsatisfiedLinkError

Hi,

I've developed a jme application and published it (with JWS)

I've a user (using Windows 7) who has this exception:



...
Caused by: java.lang.UnsatisfiedLinkError: org.lwjgl.openal.AL10.nalGenBuffers(ILjava/nio/IntBuffer;I)V
at org.lwjgl.openal.AL10.nalGenBuffers(Native Method)
at org.lwjgl.openal.AL10.alGenBuffers(AL10.java:990)
at com.jmex.audio.openal.OpenALAudioBuffer.generateBuffer(OpenALAudioBuffer.java:107)
at com.jmex.audio.openal.OpenALSystem.createAudioTrack(OpenALSystem.java:180)
at com.jmex.audio.openal.OpenALSystem.createAudioTrack(OpenALSystem.java:59)
at it.F1Viewer3D.Car.buildCarAudio(Car.java:312)
...



I cannot reproduce error (I've xp).
Which could be the cause?
Thanks