文件“<var>File Name</var>”可能来自不完全受信任的位置。打开该文件可能会带来安全风险，导致计算机损坏或危及您的私有信息的安全。 若要避免出现此异常，请先执行安全检查(可参考此链接 http://msdn.microsoft.com/library/system.security.permissionset.aspx 以获取有关 IsUnrestricted 检查的信息)，并通过从工作流设计器设置 DesignerConfigurationService.LoadingFromUntrustedSourceEnabled = true 来打开 LoadingFromUntrustedSourceEnabled。

The file '<var>File Name</var>' may have come from a location that isn't fully trusted. It could present a security risk by opening the file that could cause damage to your computer or compromise your private information. To avoid this exception, please do the security check first (you can refer this link http://msdn.microsoft.com/library/system.security.permissionset.aspx to get information about IsUnrestricted check) and turn on LoadingFromUntrustedSourceEnabled by setting DesignerConfigurationService.LoadingFromUntrustedSourceEnabled = true from workflow designer.

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