公司升级6.0后，部分客户端点击打印后闪退（win7系统），客户端操作日志如下：
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******2016年4月8日 13:16:27******
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StartAppVerify:{"Title":"","Message":"","ResultType":1,"FailureCallBackType":0,"RedirectUrl":null,"ExitType":0,"UserToken":null,"SessionId":null}
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******2016年4月8日 14:17:25******
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App Started At:2016年4月8日 14:17:23,TimeOfDay:51443686.2213
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******2016年4月8日 14:17:27******
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StartAppVerify:{"Title":"","Message":"","ResultType":1,"FailureCallBackType":0,"RedirectUrl":null,"ExitType":0,"UserToken":null,"SessionId":null}
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******2016年4月8日 14:18:20******
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System.Printing.PrintSystemExceptionPrinting was canceled. Win32 error: RPC 服务器不可用。
at DevExpress.Xpf.Printing.Native.PrintService.documentPrinter_PrintAsyncCompleted(Object sender, AsyncCompletedEventArgs e)
at DevExpress.Xpf.Printing.Native.DocumentPrinter.OnAsyncPrintJobCompleted(Exception error, Boolean cancelled, Object userState)
at DevExpress.Xpf.Printing.Native.DocumentPrinter.writer_WritingCompleted(Object sender, WritingCompletedEventArgs e)
at System.Windows.Xps.XpsDocumentWriter.raise__WritingCompleted(Object value0, WritingCompletedEventArgs value1)
at System.Windows.Xps.XpsDocumentWriter.raise_WritingCompleted(Object sender, WritingCompletedEventArgs e)
at System.Windows.Xps.XpsDocumentWriter.ForwardWriteCompletedEvent(Object sender, XpsSerializationCompletedEventArgs args)
at System.Windows.Xps.Serialization.NgcSerializationManagerAsync.OnNGCSerializationCompleted(Object operationState)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
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******2016年4月8日 14:18:46******
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App Started At:2016年4月8日 14:18:45,TimeOfDay:51525728.3151
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******2016年4月8日 14:18:47******
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StartAppVerify:{"Title":"","Message":"","ResultType":1,"FailureCallBackType":0,"RedirectUrl":null,"ExitType":0,"UserToken":null,"SessionId":null}
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******2016年4月8日 14:19:28******
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System.Printing.PrintSystemExceptionPrinting was canceled. Win32 error: RPC 服务器不可用。
at DevExpress.Xpf.Printing.Native.PrintService.documentPrinter_PrintAsyncCompleted(Object sender, AsyncCompletedEventArgs e)
at DevExpress.Xpf.Printing.Native.DocumentPrinter.OnAsyncPrintJobCompleted(Exception error, Boolean cancelled, Object userState)
at DevExpress.Xpf.Printing.Native.DocumentPrinter.writer_WritingCompleted(Object sender, WritingCompletedEventArgs e)
at System.Windows.Xps.XpsDocumentWriter.raise__WritingCompleted(Object value0, WritingCompletedEventArgs value1)
at System.Windows.Xps.XpsDocumentWriter.raise_WritingCompleted(Object sender, WritingCompletedEventArgs e)
at System.Windows.Xps.XpsDocumentWriter.ForwardWriteCompletedEvent(Object sender, XpsSerializationCompletedEventArgs args)
at System.Windows.Xps.Serialization.NgcSerializationManagerAsync.OnNGCSerializationCompleted(Object operationState)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
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******2016年4月8日 14:21:22******
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App Started At:2016年4月8日 14:21:20,TimeOfDay:51680946.3705
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******2016年4月8日 14:21:24******
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StartAppVerify:{"Title":"","Message":"","ResultType":1,"FailureCallBackType":0,"RedirectUrl":null,"ExitType":0,"UserToken":null,"SessionId":null}
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******2016年4月8日 14:24:38******
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StartAppVerify:{"Title":"","Message":"","ResultType":1,"FailureCallBackType":0,"RedirectUrl":null,"ExitType":0,"UserToken":null,"SessionId":null}
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