help me KeycodeV2.dll

Hi all.
I use Vb.net 2003 and Crystal Report 11
After i was Backage the project is Go to an Computer Other.
Setup it.
But when i Print Report is it report error

Cannot find KeycodeV2.dll or Invalid Keycode. anh detail error

CrystalDecisions.CrystalReports.Engine.InternalException: Cannot find KeycodeV2.dll, or invalid keycode.
at . F(String , EngineExceptionErrorID
)
at . B(String , Int32 )
at CrystalDecisions.CrystalReports.Engine.ReportDocument. ;()
at CrystalDecisions.CrystalReports.Engine.ReportDocument.InternalInit()
at CrystalDecisions.CrystalReports.Engine.ReportDocument..ctor()
at QL_VATTU.frmInPhongban.frmInPhongban_Load(Object sender, EventArgs e)
at System.Windows.Forms.Form.OnLoad(EventArgs e)
at System.Windows.Forms.Form.OnCreateControl()
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
at System.Windows.Forms.ContainerControl.WndProc(Message& m)
at System.Windows.Forms.Form.WmShowWindow(Message& m)
at System.Windows.Forms.Form.WndProc(Message& m)
at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

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How i can to fix error it ?
Can you help me ?
Thank youmake sure the dll KeycodeV2.dll is properly registered
or search here for the solution
http://support.businessobjects.com/