Problème installation logiciel (Java) ?

Bonjour,
Je souhaite installer un logiciel qui s'exécute par un fichier jar. Quand je lance la ligne de commande

java -jar fichier.jar

l'installation commence mais à un moment l'installation se bloque et j'ai ceci qui s'affiche dans l'invite de commande.

could not create shortcut instance 
java.lang.Exception: error loading library   
java.lang.Exception: can't locate library   
        at com.izforge.izpack.util.Librarian.loadArchSpecificLibrary(Unknown Sou   
rce)   
        at com.izforge.izpack.util.Librarian.loadLibrary(Unknown Source)   
        at com.izforge.izpack.util.os.ShellLink.initialize(Unknown Source)   
        at com.izforge.izpack.util.os.ShellLink.<init>(Unknown Source)   
        at com.izforge.izpack.util.os.Win_Shortcut.initialize(Unknown Source)   
        at com.izforge.izpack.panels.ShortcutPanel.panelActivate(Unknown Source)   

        at com.izforge.izpack.installer.InstallerFrame.switchPanel(Unknown Sourc   
e)   
        at com.izforge.izpack.installer.InstallerFrame.navigateNext(Unknown Sour   
ce)   
        at com.izforge.izpack.installer.InstallerFrame.navigateNext(Unknown Sour   
ce)   
        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler.navigat   
e(Unknown Source)   
        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler.access$   
100(Unknown Source)   
        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler$1.run(U   
nknown Source)   
        at java.lang.Thread.run(Unknown Source)   
java.lang.NullPointerException   
        at com.izforge.izpack.util.os.Win_Shortcut.getProgramsFolder(Unknown Sou   
rce)   
        at com.izforge.izpack.panels.ShortcutPanel.getProgramsFolder(Unknown Sou   
rce)   
        at com.izforge.izpack.panels.ShortcutPanel.panelActivate(Unknown Source)   

        at com.izforge.izpack.installer.InstallerFrame.switchPanel(Unknown Sourc   
e)   
        at com.izforge.izpack.installer.InstallerFrame.navigateNext(Unknown Sour   
ce)   
        at com.izforge.izpack.installer.InstallerFrame.navigateNext(Unknown Sour   
ce)   
        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler.navigat   
e(Unknown Source)   
        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler.access$   
100(Unknown Source)   
        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler$1.run(U   
nknown Source)   
        at java.lang.Thread.run(Unknown Source)   
Exception in thread "Thread-14" java.lang.NullPointerException   
        at com.izforge.izpack.panels.ShortcutPanel.isValidated(Unknown Source)   
        at com.izforge.izpack.installer.IzPanel.panelValidated(Unknown Source)   
        at com.izforge.izpack.installer.InstallerFrame.navigateNext(Unknown Sour   
ce)   
        at com.izforge.izpack.installer.InstallerFrame.navigateNext(Unknown Sour   
ce)   
        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler.navigat   
e(Unknown Source)   
        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler.access$   
100(Unknown Source)   
        at com.izforge.izpack.installer.InstallerFrame$NavigationHandler$1.run(U   
nknown Source)   
        at java.lang.Thread.run(Unknown Source)

Est-ce un problème de version de Java 32 ou 64 bits ? Merci de votre aide